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Finding the Fourth Proportional to 438,045.10, 656,030.85 and 297,040.30

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Solution

The fourth proportional to 438,045.10, 656,030.85 and 297,040.30 is: 444,857.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,045.10 : 656,030.85 = 297,040.30 : x
  2. Step 2: Convert to fraction form
    438,045.10/656,030.85 = 297,040.30/x
  3. Step 3: Cross multiply
    438,045.10x = 656,030.85 × 297,040.30
  4. Step 4: Simplify right side
    438,045.10x = 194,867,600,493.26
  5. Step 5: Solve for x
    x = 194,867,600,493.26/438,045.10
  6. Step 6: Final answer
    x = 444,857.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.