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Finding the Fourth Proportional to 631,380.80, 946,034.40 and 525,627.20

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Solution

The fourth proportional to 631,380.80, 946,034.40 and 525,627.20 is: 787,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,380.80 : 946,034.40 = 525,627.20 : x
  2. Step 2: Convert to fraction form
    631,380.80/946,034.40 = 525,627.20/x
  3. Step 3: Cross multiply
    631,380.80x = 946,034.40 × 525,627.20
  4. Step 4: Simplify right side
    631,380.80x = 497,261,412,775.68
  5. Step 5: Solve for x
    x = 497,261,412,775.68/631,380.80
  6. Step 6: Final answer
    x = 787,577.66

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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.