Home / 971,379.60-1,456,378.20-372,109.20

Finding the Fourth Proportional to 971,379.60, 1,456,378.20 and 372,109.20

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Solution

The fourth proportional to 971,379.60, 1,456,378.20 and 372,109.20 is: 557,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,379.60 : 1,456,378.20 = 372,109.20 : x
  2. Step 2: Convert to fraction form
    971,379.60/1,456,378.20 = 372,109.20/x
  3. Step 3: Cross multiply
    971,379.60x = 1,456,378.20 × 372,109.20
  4. Step 4: Simplify right side
    971,379.60x = 541,931,726,899.44
  5. Step 5: Solve for x
    x = 541,931,726,899.44/971,379.60
  6. Step 6: Final answer
    x = 557,899.02

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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.