Home / 745,831.78-1,119,723.32-442,779.18

Finding the Fourth Proportional to 745,831.78, 1,119,723.32 and 442,779.18

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Solution

The fourth proportional to 745,831.78, 1,119,723.32 and 442,779.18 is: 664,747.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,831.78 : 1,119,723.32 = 442,779.18 : x
  2. Step 2: Convert to fraction form
    745,831.78/1,119,723.32 = 442,779.18/x
  3. Step 3: Cross multiply
    745,831.78x = 1,119,723.32 × 442,779.18
  4. Step 4: Simplify right side
    745,831.78x = 495,790,173,456.48
  5. Step 5: Solve for x
    x = 495,790,173,456.48/745,831.78
  6. Step 6: Final answer
    x = 664,747.99

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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.