Home / 1,489,139.60-2,233,265.51-542,288.88

Finding the Fourth Proportional to 1,489,139.60, 2,233,265.51 and 542,288.88

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Solution

The fourth proportional to 1,489,139.60, 2,233,265.51 and 542,288.88 is: 813,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,139.60 : 2,233,265.51 = 542,288.88 : x
  2. Step 2: Convert to fraction form
    1,489,139.60/2,233,265.51 = 542,288.88/x
  3. Step 3: Cross multiply
    1,489,139.60x = 2,233,265.51 × 542,288.88
  4. Step 4: Simplify right side
    1,489,139.60x = 1,211,075,053,516.25
  5. Step 5: Solve for x
    x = 1,211,075,053,516.25/1,489,139.60
  6. Step 6: Final answer
    x = 813,271.68

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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.