Home / 977,136.20-1,463,630.70-811,248.20

Finding the Fourth Proportional to 977,136.20, 1,463,630.70 and 811,248.20

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Solution

The fourth proportional to 977,136.20, 1,463,630.70 and 811,248.20 is: 1,215,150.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,136.20 : 1,463,630.70 = 811,248.20 : x
  2. Step 2: Convert to fraction form
    977,136.20/1,463,630.70 = 811,248.20/x
  3. Step 3: Cross multiply
    977,136.20x = 1,463,630.70 × 811,248.20
  4. Step 4: Simplify right side
    977,136.20x = 1,187,367,770,839.74
  5. Step 5: Solve for x
    x = 1,187,367,770,839.74/977,136.20
  6. Step 6: Final answer
    x = 1,215,150.73

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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.