Home / 1,472,743.20-2,209,114.80-762,988.80

Finding the Fourth Proportional to 1,472,743.20, 2,209,114.80 and 762,988.80

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Solution

The fourth proportional to 1,472,743.20, 2,209,114.80 and 762,988.80 is: 1,144,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472,743.20 : 2,209,114.80 = 762,988.80 : x
  2. Step 2: Convert to fraction form
    1,472,743.20/2,209,114.80 = 762,988.80/x
  3. Step 3: Cross multiply
    1,472,743.20x = 2,209,114.80 × 762,988.80
  4. Step 4: Simplify right side
    1,472,743.20x = 1,685,529,850,314.24
  5. Step 5: Solve for x
    x = 1,685,529,850,314.24/1,472,743.20
  6. Step 6: Final answer
    x = 1,144,483.20

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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.