Home / 745,831.28-1,118,908.92-272,515.88

Finding the Fourth Proportional to 745,831.28, 1,118,908.92 and 272,515.88

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Solution

The fourth proportional to 745,831.28, 1,118,908.92 and 272,515.88 is: 408,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,831.28 : 1,118,908.92 = 272,515.88 : x
  2. Step 2: Convert to fraction form
    745,831.28/1,118,908.92 = 272,515.88/x
  3. Step 3: Cross multiply
    745,831.28x = 1,118,908.92 × 272,515.88
  4. Step 4: Simplify right side
    745,831.28x = 304,920,443,379.11
  5. Step 5: Solve for x
    x = 304,920,443,379.11/745,831.28
  6. Step 6: Final answer
    x = 408,833.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.