Home / 730,428.48-1,008,030.24-408,146.40

Finding the Fourth Proportional to 730,428.48, 1,008,030.24 and 408,146.40

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Solution

The fourth proportional to 730,428.48, 1,008,030.24 and 408,146.40 is: 563,263.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,428.48 : 1,008,030.24 = 408,146.40 : x
  2. Step 2: Convert to fraction form
    730,428.48/1,008,030.24 = 408,146.40/x
  3. Step 3: Cross multiply
    730,428.48x = 1,008,030.24 × 408,146.40
  4. Step 4: Simplify right side
    730,428.48x = 411,423,913,547.14
  5. Step 5: Solve for x
    x = 411,423,913,547.14/730,428.48
  6. Step 6: Final answer
    x = 563,263.79

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.