Home / 768,000.70-1,152,001.05-394,752.70

Finding the Fourth Proportional to 768,000.70, 1,152,001.05 and 394,752.70

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Solution

The fourth proportional to 768,000.70, 1,152,001.05 and 394,752.70 is: 592,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,000.70 : 1,152,001.05 = 394,752.70 : x
  2. Step 2: Convert to fraction form
    768,000.70/1,152,001.05 = 394,752.70/x
  3. Step 3: Cross multiply
    768,000.70x = 1,152,001.05 × 394,752.70
  4. Step 4: Simplify right side
    768,000.70x = 454,755,524,890.34
  5. Step 5: Solve for x
    x = 454,755,524,890.34/768,000.70
  6. Step 6: Final answer
    x = 592,129.05

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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.