Home / 724,831.20-1,000,767.47-453,021.28

Finding the Fourth Proportional to 724,831.20, 1,000,767.47 and 453,021.28

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Solution

The fourth proportional to 724,831.20, 1,000,767.47 and 453,021.28 is: 625,482.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,831.20 : 1,000,767.47 = 453,021.28 : x
  2. Step 2: Convert to fraction form
    724,831.20/1,000,767.47 = 453,021.28/x
  3. Step 3: Cross multiply
    724,831.20x = 1,000,767.47 × 453,021.28
  4. Step 4: Simplify right side
    724,831.20x = 453,368,955,474.74
  5. Step 5: Solve for x
    x = 453,368,955,474.74/724,831.20
  6. Step 6: Final answer
    x = 625,482.12

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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.