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Finding the Fourth Proportional to 585,087.70, 877,631.55 and 385,633.30

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Solution

The fourth proportional to 585,087.70, 877,631.55 and 385,633.30 is: 578,449.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,087.70 : 877,631.55 = 385,633.30 : x
  2. Step 2: Convert to fraction form
    585,087.70/877,631.55 = 385,633.30/x
  3. Step 3: Cross multiply
    585,087.70x = 877,631.55 × 385,633.30
  4. Step 4: Simplify right side
    585,087.70x = 338,443,950,810.62
  5. Step 5: Solve for x
    x = 338,443,950,810.62/585,087.70
  6. Step 6: Final answer
    x = 578,449.95

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Similar ratio
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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.