Home / 917,709.40-1,376,564.10-243,894.70

Finding the Fourth Proportional to 917,709.40, 1,376,564.10 and 243,894.70

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Solution

The fourth proportional to 917,709.40, 1,376,564.10 and 243,894.70 is: 365,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,709.40 : 1,376,564.10 = 243,894.70 : x
  2. Step 2: Convert to fraction form
    917,709.40/1,376,564.10 = 243,894.70/x
  3. Step 3: Cross multiply
    917,709.40x = 1,376,564.10 × 243,894.70
  4. Step 4: Simplify right side
    917,709.40x = 335,736,688,200.27
  5. Step 5: Solve for x
    x = 335,736,688,200.27/917,709.40
  6. Step 6: Final answer
    x = 365,842.05

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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.