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Finding the Fourth Proportional to 618,641.02, 853,778.64 and 360,504.46

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Solution

The fourth proportional to 618,641.02, 853,778.64 and 360,504.46 is: 497,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,641.02 : 853,778.64 = 360,504.46 : x
  2. Step 2: Convert to fraction form
    618,641.02/853,778.64 = 360,504.46/x
  3. Step 3: Cross multiply
    618,641.02x = 853,778.64 × 360,504.46
  4. Step 4: Simplify right side
    618,641.02x = 307,791,007,572.73
  5. Step 5: Solve for x
    x = 307,791,007,572.73/618,641.02
  6. Step 6: Final answer
    x = 497,527.64

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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.