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Finding the Fourth Proportional to 651,796.80, 977,695.20 and 371,860.80

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Solution

The fourth proportional to 651,796.80, 977,695.20 and 371,860.80 is: 557,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,796.80 : 977,695.20 = 371,860.80 : x
  2. Step 2: Convert to fraction form
    651,796.80/977,695.20 = 371,860.80/x
  3. Step 3: Cross multiply
    651,796.80x = 977,695.20 × 371,860.80
  4. Step 4: Simplify right side
    651,796.80x = 363,566,519,228.16
  5. Step 5: Solve for x
    x = 363,566,519,228.16/651,796.80
  6. Step 6: Final answer
    x = 557,791.20

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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.