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Finding the Fourth Proportional to 618,534.34, 853,562.96 and 363,901.93

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Solution

The fourth proportional to 618,534.34, 853,562.96 and 363,901.93 is: 502,176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,534.34 : 853,562.96 = 363,901.93 : x
  2. Step 2: Convert to fraction form
    618,534.34/853,562.96 = 363,901.93/x
  3. Step 3: Cross multiply
    618,534.34x = 853,562.96 × 363,901.93
  4. Step 4: Simplify right side
    618,534.34x = 310,613,206,701.00
  5. Step 5: Solve for x
    x = 310,613,206,701.00/618,534.34
  6. Step 6: Final answer
    x = 502,176.17

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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.