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Finding the Fourth Proportional to 618,642.02, 853,780.02 and 360,505.46

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Solution

The fourth proportional to 618,642.02, 853,780.02 and 360,505.46 is: 497,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,642.02 : 853,780.02 = 360,505.46 : x
  2. Step 2: Convert to fraction form
    618,642.02/853,780.02 = 360,505.46/x
  3. Step 3: Cross multiply
    618,642.02x = 853,780.02 × 360,505.46
  4. Step 4: Simplify right side
    618,642.02x = 307,792,358,848.91
  5. Step 5: Solve for x
    x = 307,792,358,848.91/618,642.02
  6. Step 6: Final answer
    x = 497,529.02

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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.