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Finding the Fourth Proportional to 384,779.61, 574,351.65 and 339,329.22

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Solution

The fourth proportional to 384,779.61, 574,351.65 and 339,329.22 is: 506,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779.61 : 574,351.65 = 339,329.22 : x
  2. Step 2: Convert to fraction form
    384,779.61/574,351.65 = 339,329.22/x
  3. Step 3: Cross multiply
    384,779.61x = 574,351.65 × 339,329.22
  4. Step 4: Simplify right side
    384,779.61x = 194,894,297,400.21
  5. Step 5: Solve for x
    x = 194,894,297,400.21/384,779.61
  6. Step 6: Final answer
    x = 506,508.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.