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Finding the Fourth Proportional to 618,565.59, 853,606.62 and 360,426.42

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Solution

The fourth proportional to 618,565.59, 853,606.62 and 360,426.42 is: 497,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,565.59 : 853,606.62 = 360,426.42 : x
  2. Step 2: Convert to fraction form
    618,565.59/853,606.62 = 360,426.42/x
  3. Step 3: Cross multiply
    618,565.59x = 853,606.62 × 360,426.42
  4. Step 4: Simplify right side
    618,565.59x = 307,662,378,134.90
  5. Step 5: Solve for x
    x = 307,662,378,134.90/618,565.59
  6. Step 6: Final answer
    x = 497,380.36

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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.