Home / 770,734.20-1,156,101.30-415,565.40

Finding the Fourth Proportional to 770,734.20, 1,156,101.30 and 415,565.40

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Solution

The fourth proportional to 770,734.20, 1,156,101.30 and 415,565.40 is: 623,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,734.20 : 1,156,101.30 = 415,565.40 : x
  2. Step 2: Convert to fraction form
    770,734.20/1,156,101.30 = 415,565.40/x
  3. Step 3: Cross multiply
    770,734.20x = 1,156,101.30 × 415,565.40
  4. Step 4: Simplify right side
    770,734.20x = 480,435,699,175.02
  5. Step 5: Solve for x
    x = 480,435,699,175.02/770,734.20
  6. Step 6: Final answer
    x = 623,348.10

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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.