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Finding the Fourth Proportional to 557,355.53, 769,149.98 and 302,704.90

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Solution

The fourth proportional to 557,355.53, 769,149.98 and 302,704.90 is: 417,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,355.53 : 769,149.98 = 302,704.90 : x
  2. Step 2: Convert to fraction form
    557,355.53/769,149.98 = 302,704.90/x
  3. Step 3: Cross multiply
    557,355.53x = 769,149.98 × 302,704.90
  4. Step 4: Simplify right side
    557,355.53x = 232,825,465,479.65
  5. Step 5: Solve for x
    x = 232,825,465,479.65/557,355.53
  6. Step 6: Final answer
    x = 417,732.40

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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.