Home / 745,040.14-1,028,519.87-499,937.21

Finding the Fourth Proportional to 745,040.14, 1,028,519.87 and 499,937.21

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Solution

The fourth proportional to 745,040.14, 1,028,519.87 and 499,937.21 is: 690,157.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,040.14 : 1,028,519.87 = 499,937.21 : x
  2. Step 2: Convert to fraction form
    745,040.14/1,028,519.87 = 499,937.21/x
  3. Step 3: Cross multiply
    745,040.14x = 1,028,519.87 × 499,937.21
  4. Step 4: Simplify right side
    745,040.14x = 514,195,348,469.84
  5. Step 5: Solve for x
    x = 514,195,348,469.84/745,040.14
  6. Step 6: Final answer
    x = 690,157.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.