Home / 749,654.60-1,125,000.30-539,443.40

Finding the Fourth Proportional to 749,654.60, 1,125,000.30 and 539,443.40

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Solution

The fourth proportional to 749,654.60, 1,125,000.30 and 539,443.40 is: 809,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,654.60 : 1,125,000.30 = 539,443.40 : x
  2. Step 2: Convert to fraction form
    749,654.60/1,125,000.30 = 539,443.40/x
  3. Step 3: Cross multiply
    749,654.60x = 1,125,000.30 × 539,443.40
  4. Step 4: Simplify right side
    749,654.60x = 606,873,986,833.02
  5. Step 5: Solve for x
    x = 606,873,986,833.02/749,654.60
  6. Step 6: Final answer
    x = 809,538.14

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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.