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Finding the Fourth Proportional to 649,548.79, 896,358.73 and 359,155.33

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Solution

The fourth proportional to 649,548.79, 896,358.73 and 359,155.33 is: 495,624.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,548.79 : 896,358.73 = 359,155.33 : x
  2. Step 2: Convert to fraction form
    649,548.79/896,358.73 = 359,155.33/x
  3. Step 3: Cross multiply
    649,548.79x = 896,358.73 × 359,155.33
  4. Step 4: Simplify right side
    649,548.79x = 321,932,015,471.53
  5. Step 5: Solve for x
    x = 321,932,015,471.53/649,548.79
  6. Step 6: Final answer
    x = 495,624.07

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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.