Home / 937,138.80-1,405,380.15-487,710.30

Finding the Fourth Proportional to 937,138.80, 1,405,380.15 and 487,710.30

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Solution

The fourth proportional to 937,138.80, 1,405,380.15 and 487,710.30 is: 731,394.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    937,138.80 : 1,405,380.15 = 487,710.30 : x
  2. Step 2: Convert to fraction form
    937,138.80/1,405,380.15 = 487,710.30/x
  3. Step 3: Cross multiply
    937,138.80x = 1,405,380.15 × 487,710.30
  4. Step 4: Simplify right side
    937,138.80x = 685,418,374,570.55
  5. Step 5: Solve for x
    x = 685,418,374,570.55/937,138.80
  6. Step 6: Final answer
    x = 731,394.72

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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.