Home / 771,028.80-1,156,543.20-297,729.60

Finding the Fourth Proportional to 771,028.80, 1,156,543.20 and 297,729.60

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Solution

The fourth proportional to 771,028.80, 1,156,543.20 and 297,729.60 is: 446,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,028.80 : 1,156,543.20 = 297,729.60 : x
  2. Step 2: Convert to fraction form
    771,028.80/1,156,543.20 = 297,729.60/x
  3. Step 3: Cross multiply
    771,028.80x = 1,156,543.20 × 297,729.60
  4. Step 4: Simplify right side
    771,028.80x = 344,337,144,318.72
  5. Step 5: Solve for x
    x = 344,337,144,318.72/771,028.80
  6. Step 6: Final answer
    x = 446,594.40

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Double scale
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Similar ratio
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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.