Home / 748,128.95-1,032,416.31-408,597.20

Finding the Fourth Proportional to 748,128.95, 1,032,416.31 and 408,597.20

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Solution

The fourth proportional to 748,128.95, 1,032,416.31 and 408,597.20 is: 563,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,128.95 : 1,032,416.31 = 408,597.20 : x
  2. Step 2: Convert to fraction form
    748,128.95/1,032,416.31 = 408,597.20/x
  3. Step 3: Cross multiply
    748,128.95x = 1,032,416.31 × 408,597.20
  4. Step 4: Simplify right side
    748,128.95x = 421,842,413,500.33
  5. Step 5: Solve for x
    x = 421,842,413,500.33/748,128.95
  6. Step 6: Final answer
    x = 563,863.24

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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.