Home / 747,919.02-1,032,128.19-408,387.54

Finding the Fourth Proportional to 747,919.02, 1,032,128.19 and 408,387.54

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Solution

The fourth proportional to 747,919.02, 1,032,128.19 and 408,387.54 is: 563,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,919.02 : 1,032,128.19 = 408,387.54 : x
  2. Step 2: Convert to fraction form
    747,919.02/1,032,128.19 = 408,387.54/x
  3. Step 3: Cross multiply
    747,919.02x = 1,032,128.19 × 408,387.54
  4. Step 4: Simplify right side
    747,919.02x = 421,508,292,478.75
  5. Step 5: Solve for x
    x = 421,508,292,478.75/747,919.02
  6. Step 6: Final answer
    x = 563,574.77

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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.