Home / 713,453.52-1,068,754.38-428,988.30

Finding the Fourth Proportional to 713,453.52, 1,068,754.38 and 428,988.30

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Solution

The fourth proportional to 713,453.52, 1,068,754.38 and 428,988.30 is: 642,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,453.52 : 1,068,754.38 = 428,988.30 : x
  2. Step 2: Convert to fraction form
    713,453.52/1,068,754.38 = 428,988.30/x
  3. Step 3: Cross multiply
    713,453.52x = 1,068,754.38 × 428,988.30
  4. Step 4: Simplify right side
    713,453.52x = 458,483,124,593.75
  5. Step 5: Solve for x
    x = 458,483,124,593.75/713,453.52
  6. Step 6: Final answer
    x = 642,625.08

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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.