Home / 725,012.80-1,087,519.20-609,539.20

Finding the Fourth Proportional to 725,012.80, 1,087,519.20 and 609,539.20

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Solution

The fourth proportional to 725,012.80, 1,087,519.20 and 609,539.20 is: 914,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,012.80 : 1,087,519.20 = 609,539.20 : x
  2. Step 2: Convert to fraction form
    725,012.80/1,087,519.20 = 609,539.20/x
  3. Step 3: Cross multiply
    725,012.80x = 1,087,519.20 × 609,539.20
  4. Step 4: Simplify right side
    725,012.80x = 662,885,583,152.64
  5. Step 5: Solve for x
    x = 662,885,583,152.64/725,012.80
  6. Step 6: Final answer
    x = 914,308.80

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1.5x scale

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.