Home / 730,321.48-1,007,786.10-408,006.28

Finding the Fourth Proportional to 730,321.48, 1,007,786.10 and 408,006.28

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Solution

The fourth proportional to 730,321.48, 1,007,786.10 and 408,006.28 is: 563,016.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,321.48 : 1,007,786.10 = 408,006.28 : x
  2. Step 2: Convert to fraction form
    730,321.48/1,007,786.10 = 408,006.28/x
  3. Step 3: Cross multiply
    730,321.48x = 1,007,786.10 × 408,006.28
  4. Step 4: Simplify right side
    730,321.48x = 411,183,057,696.71
  5. Step 5: Solve for x
    x = 411,183,057,696.71/730,321.48
  6. Step 6: Final answer
    x = 563,016.52

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Double scale
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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.