Home / 690,752.55-1,036,128.83-192,116.55

Finding the Fourth Proportional to 690,752.55, 1,036,128.83 and 192,116.55

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Solution

The fourth proportional to 690,752.55, 1,036,128.83 and 192,116.55 is: 288,174.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,752.55 : 1,036,128.83 = 192,116.55 : x
  2. Step 2: Convert to fraction form
    690,752.55/1,036,128.83 = 192,116.55/x
  3. Step 3: Cross multiply
    690,752.55x = 1,036,128.83 × 192,116.55
  4. Step 4: Simplify right side
    690,752.55x = 199,057,495,214.55
  5. Step 5: Solve for x
    x = 199,057,495,214.55/690,752.55
  6. Step 6: Final answer
    x = 288,174.83

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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.