Home / 755,066.40-1,129,975.20-692,080.80

Finding the Fourth Proportional to 755,066.40, 1,129,975.20 and 692,080.80

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Solution

The fourth proportional to 755,066.40, 1,129,975.20 and 692,080.80 is: 1,035,715.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,066.40 : 1,129,975.20 = 692,080.80 : x
  2. Step 2: Convert to fraction form
    755,066.40/1,129,975.20 = 692,080.80/x
  3. Step 3: Cross multiply
    755,066.40x = 1,129,975.20 × 692,080.80
  4. Step 4: Simplify right side
    755,066.40x = 782,034,140,396.16
  5. Step 5: Solve for x
    x = 782,034,140,396.16/755,066.40
  6. Step 6: Final answer
    x = 1,035,715.72

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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.