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Finding the Fourth Proportional to 662,652.80, 991,646.40 and 606,665.60

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Solution

The fourth proportional to 662,652.80, 991,646.40 and 606,665.60 is: 907,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,652.80 : 991,646.40 = 606,665.60 : x
  2. Step 2: Convert to fraction form
    662,652.80/991,646.40 = 606,665.60/x
  3. Step 3: Cross multiply
    662,652.80x = 991,646.40 × 606,665.60
  4. Step 4: Simplify right side
    662,652.80x = 601,597,758,243.84
  5. Step 5: Solve for x
    x = 601,597,758,243.84/662,652.80
  6. Step 6: Final answer
    x = 907,862.70

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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.