Home / 768,110.40-1,152,165.60-712,123.20

Finding the Fourth Proportional to 768,110.40, 1,152,165.60 and 712,123.20

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Solution

The fourth proportional to 768,110.40, 1,152,165.60 and 712,123.20 is: 1,068,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,110.40 : 1,152,165.60 = 712,123.20 : x
  2. Step 2: Convert to fraction form
    768,110.40/1,152,165.60 = 712,123.20/x
  3. Step 3: Cross multiply
    768,110.40x = 1,152,165.60 × 712,123.20
  4. Step 4: Simplify right side
    768,110.40x = 820,483,854,001.92
  5. Step 5: Solve for x
    x = 820,483,854,001.92/768,110.40
  6. Step 6: Final answer
    x = 1,068,184.80

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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.