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Finding the Fourth Proportional to 579,807.70, 869,711.55 and 579,807.70

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Solution

The fourth proportional to 579,807.70, 869,711.55 and 579,807.70 is: 869,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,807.70 : 869,711.55 = 579,807.70 : x
  2. Step 2: Convert to fraction form
    579,807.70/869,711.55 = 579,807.70/x
  3. Step 3: Cross multiply
    579,807.70x = 869,711.55 × 579,807.70
  4. Step 4: Simplify right side
    579,807.70x = 504,265,453,468.94
  5. Step 5: Solve for x
    x = 504,265,453,468.94/579,807.70
  6. Step 6: Final answer
    x = 869,711.55

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Similar ratio
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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.