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Finding the Fourth Proportional to 751.07, 1,125.55 and 565.85

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Solution

The fourth proportional to 751.07, 1,125.55 and 565.85 is: 847.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.07 : 1,125.55 = 565.85 : x
  2. Step 2: Convert to fraction form
    751.07/1,125.55 = 565.85/x
  3. Step 3: Cross multiply
    751.07x = 1,125.55 × 565.85
  4. Step 4: Simplify right side
    751.07x = 636,895.99
  5. Step 5: Solve for x
    x = 636,895.99/751.07
  6. Step 6: Final answer
    x = 847.98

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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.