Home / 725,124.30-1,000,831.59-402,945.18

Finding the Fourth Proportional to 725,124.30, 1,000,831.59 and 402,945.18

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Solution

The fourth proportional to 725,124.30, 1,000,831.59 and 402,945.18 is: 556,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,124.30 : 1,000,831.59 = 402,945.18 : x
  2. Step 2: Convert to fraction form
    725,124.30/1,000,831.59 = 402,945.18/x
  3. Step 3: Cross multiply
    725,124.30x = 1,000,831.59 × 402,945.18
  4. Step 4: Simplify right side
    725,124.30x = 403,280,265,182.24
  5. Step 5: Solve for x
    x = 403,280,265,182.24/725,124.30
  6. Step 6: Final answer
    x = 556,153.29

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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.