Home / 730,916.47-1,008,686.96-408,640.15

Finding the Fourth Proportional to 730,916.47, 1,008,686.96 and 408,640.15

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Solution

The fourth proportional to 730,916.47, 1,008,686.96 and 408,640.15 is: 563,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,916.47 : 1,008,686.96 = 408,640.15 : x
  2. Step 2: Convert to fraction form
    730,916.47/1,008,686.96 = 408,640.15/x
  3. Step 3: Cross multiply
    730,916.47x = 1,008,686.96 × 408,640.15
  4. Step 4: Simplify right side
    730,916.47x = 412,189,990,637.44
  5. Step 5: Solve for x
    x = 412,189,990,637.44/730,916.47
  6. Step 6: Final answer
    x = 563,935.84

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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.