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Finding the Fourth Proportional to 500,245.51, 750,772.86 and 387,658.75

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Solution

The fourth proportional to 500,245.51, 750,772.86 and 387,658.75 is: 581,801.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,245.51 : 750,772.86 = 387,658.75 : x
  2. Step 2: Convert to fraction form
    500,245.51/750,772.86 = 387,658.75/x
  3. Step 3: Cross multiply
    500,245.51x = 750,772.86 × 387,658.75
  4. Step 4: Simplify right side
    500,245.51x = 291,043,668,441.53
  5. Step 5: Solve for x
    x = 291,043,668,441.53/500,245.51
  6. Step 6: Final answer
    x = 581,801.66

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1.5x scale

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.