Home / 649,325.20-972,238.20-509,357.20

Finding the Fourth Proportional to 649,325.20, 972,238.20 and 509,357.20

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Solution

The fourth proportional to 649,325.20, 972,238.20 and 509,357.20 is: 762,663.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,325.20 : 972,238.20 = 509,357.20 : x
  2. Step 2: Convert to fraction form
    649,325.20/972,238.20 = 509,357.20/x
  3. Step 3: Cross multiply
    649,325.20x = 972,238.20 × 509,357.20
  4. Step 4: Simplify right side
    649,325.20x = 495,216,527,285.04
  5. Step 5: Solve for x
    x = 495,216,527,285.04/649,325.20
  6. Step 6: Final answer
    x = 762,663.34

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1.5x scale

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.