Home / 917,348.40-1,376,022.60-243,428.40

Finding the Fourth Proportional to 917,348.40, 1,376,022.60 and 243,428.40

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Solution

The fourth proportional to 917,348.40, 1,376,022.60 and 243,428.40 is: 365,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,348.40 : 1,376,022.60 = 243,428.40 : x
  2. Step 2: Convert to fraction form
    917,348.40/1,376,022.60 = 243,428.40/x
  3. Step 3: Cross multiply
    917,348.40x = 1,376,022.60 × 243,428.40
  4. Step 4: Simplify right side
    917,348.40x = 334,962,979,881.84
  5. Step 5: Solve for x
    x = 334,962,979,881.84/917,348.40
  6. Step 6: Final answer
    x = 365,142.60

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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.