Home / 977,124.20-1,463,612.70-811,236.20

Finding the Fourth Proportional to 977,124.20, 1,463,612.70 and 811,236.20

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Solution

The fourth proportional to 977,124.20, 1,463,612.70 and 811,236.20 is: 1,215,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,124.20 : 1,463,612.70 = 811,236.20 : x
  2. Step 2: Convert to fraction form
    977,124.20/1,463,612.70 = 811,236.20/x
  3. Step 3: Cross multiply
    977,124.20x = 1,463,612.70 × 811,236.20
  4. Step 4: Simplify right side
    977,124.20x = 1,187,335,605,019.74
  5. Step 5: Solve for x
    x = 1,187,335,605,019.74/977,124.20
  6. Step 6: Final answer
    x = 1,215,132.74

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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.