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Finding the Fourth Proportional to 651,710.80, 977,517.60 and 272,533.60

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Solution

The fourth proportional to 651,710.80, 977,517.60 and 272,533.60 is: 408,780.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,710.80 : 977,517.60 = 272,533.60 : x
  2. Step 2: Convert to fraction form
    651,710.80/977,517.60 = 272,533.60/x
  3. Step 3: Cross multiply
    651,710.80x = 977,517.60 × 272,533.60
  4. Step 4: Simplify right side
    651,710.80x = 266,406,390,591.36
  5. Step 5: Solve for x
    x = 266,406,390,591.36/651,710.80
  6. Step 6: Final answer
    x = 408,780.08

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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.