Home / 990,491.28-1,486,327.14-359,454.30

Finding the Fourth Proportional to 990,491.28, 1,486,327.14 and 359,454.30

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Solution

The fourth proportional to 990,491.28, 1,486,327.14 and 359,454.30 is: 539,395.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,491.28 : 1,486,327.14 = 359,454.30 : x
  2. Step 2: Convert to fraction form
    990,491.28/1,486,327.14 = 359,454.30/x
  3. Step 3: Cross multiply
    990,491.28x = 1,486,327.14 × 359,454.30
  4. Step 4: Simplify right side
    990,491.28x = 534,266,681,679.70
  5. Step 5: Solve for x
    x = 534,266,681,679.70/990,491.28
  6. Step 6: Final answer
    x = 539,395.64

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1.5x scale

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.