Home / 558,589.59-769,385.25-429,280.65

Finding the Fourth Proportional to 558,589.59, 769,385.25 and 429,280.65

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Solution

The fourth proportional to 558,589.59, 769,385.25 and 429,280.65 is: 591,278.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,589.59 : 769,385.25 = 429,280.65 : x
  2. Step 2: Convert to fraction form
    558,589.59/769,385.25 = 429,280.65/x
  3. Step 3: Cross multiply
    558,589.59x = 769,385.25 × 429,280.65
  4. Step 4: Simplify right side
    558,589.59x = 330,282,200,220.41
  5. Step 5: Solve for x
    x = 330,282,200,220.41/558,589.59
  6. Step 6: Final answer
    x = 591,278.83

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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.