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Finding the Fourth Proportional to 662,655.60, 994,501.80 and 307,713.60

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Solution

The fourth proportional to 662,655.60, 994,501.80 and 307,713.60 is: 461,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,655.60 : 994,501.80 = 307,713.60 : x
  2. Step 2: Convert to fraction form
    662,655.60/994,501.80 = 307,713.60/x
  3. Step 3: Cross multiply
    662,655.60x = 994,501.80 × 307,713.60
  4. Step 4: Simplify right side
    662,655.60x = 306,021,729,084.48
  5. Step 5: Solve for x
    x = 306,021,729,084.48/662,655.60
  6. Step 6: Final answer
    x = 461,811.13

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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.