Home / 771,128.80-1,156,693.20-297,829.60

Finding the Fourth Proportional to 771,128.80, 1,156,693.20 and 297,829.60

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Solution

The fourth proportional to 771,128.80, 1,156,693.20 and 297,829.60 is: 446,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,128.80 : 1,156,693.20 = 297,829.60 : x
  2. Step 2: Convert to fraction form
    771,128.80/1,156,693.20 = 297,829.60/x
  3. Step 3: Cross multiply
    771,128.80x = 1,156,693.20 × 297,829.60
  4. Step 4: Simplify right side
    771,128.80x = 344,497,473,078.72
  5. Step 5: Solve for x
    x = 344,497,473,078.72/771,128.80
  6. Step 6: Final answer
    x = 446,744.40

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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.