Home / 854,585.40-1,281,878.10-535,720.80

Finding the Fourth Proportional to 854,585.40, 1,281,878.10 and 535,720.80

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Solution

The fourth proportional to 854,585.40, 1,281,878.10 and 535,720.80 is: 803,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,585.40 : 1,281,878.10 = 535,720.80 : x
  2. Step 2: Convert to fraction form
    854,585.40/1,281,878.10 = 535,720.80/x
  3. Step 3: Cross multiply
    854,585.40x = 1,281,878.10 × 535,720.80
  4. Step 4: Simplify right side
    854,585.40x = 686,728,761,234.48
  5. Step 5: Solve for x
    x = 686,728,761,234.48/854,585.40
  6. Step 6: Final answer
    x = 803,581.20

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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.