Home / 726,291.12-1,002,130.20-439,831.92

Finding the Fourth Proportional to 726,291.12, 1,002,130.20 and 439,831.92

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Solution

The fourth proportional to 726,291.12, 1,002,130.20 and 439,831.92 is: 606,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,291.12 : 1,002,130.20 = 439,831.92 : x
  2. Step 2: Convert to fraction form
    726,291.12/1,002,130.20 = 439,831.92/x
  3. Step 3: Cross multiply
    726,291.12x = 1,002,130.20 × 439,831.92
  4. Step 4: Simplify right side
    726,291.12x = 440,768,849,955.98
  5. Step 5: Solve for x
    x = 440,768,849,955.98/726,291.12
  6. Step 6: Final answer
    x = 606,876.28

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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.