Home / 817,031.40-1,224,234.90-769,792.20

Finding the Fourth Proportional to 817,031.40, 1,224,234.90 and 769,792.20

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Solution

The fourth proportional to 817,031.40, 1,224,234.90 and 769,792.20 is: 1,153,451.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,031.40 : 1,224,234.90 = 769,792.20 : x
  2. Step 2: Convert to fraction form
    817,031.40/1,224,234.90 = 769,792.20/x
  3. Step 3: Cross multiply
    817,031.40x = 1,224,234.90 × 769,792.20
  4. Step 4: Simplify right side
    817,031.40x = 942,406,476,987.78
  5. Step 5: Solve for x
    x = 942,406,476,987.78/817,031.40
  6. Step 6: Final answer
    x = 1,153,451.97

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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.