Home / 709,638.76-1,064,049.10-485,271.01

Finding the Fourth Proportional to 709,638.76, 1,064,049.10 and 485,271.01

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Solution

The fourth proportional to 709,638.76, 1,064,049.10 and 485,271.01 is: 727,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,638.76 : 1,064,049.10 = 485,271.01 : x
  2. Step 2: Convert to fraction form
    709,638.76/1,064,049.10 = 485,271.01/x
  3. Step 3: Cross multiply
    709,638.76x = 1,064,049.10 × 485,271.01
  4. Step 4: Simplify right side
    709,638.76x = 516,352,181,446.59
  5. Step 5: Solve for x
    x = 516,352,181,446.59/709,638.76
  6. Step 6: Final answer
    x = 727,626.80

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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.