Home / 917,575.40-1,376,363.10-243,655.40

Finding the Fourth Proportional to 917,575.40, 1,376,363.10 and 243,655.40

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Solution

The fourth proportional to 917,575.40, 1,376,363.10 and 243,655.40 is: 365,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,575.40 : 1,376,363.10 = 243,655.40 : x
  2. Step 2: Convert to fraction form
    917,575.40/1,376,363.10 = 243,655.40/x
  3. Step 3: Cross multiply
    917,575.40x = 1,376,363.10 × 243,655.40
  4. Step 4: Simplify right side
    917,575.40x = 335,358,301,675.74
  5. Step 5: Solve for x
    x = 335,358,301,675.74/917,575.40
  6. Step 6: Final answer
    x = 365,483.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.