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Finding the Fourth Proportional to 651,796.80, 977,646.60 and 272,619.60

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Solution

The fourth proportional to 651,796.80, 977,646.60 and 272,619.60 is: 408,909.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,796.80 : 977,646.60 = 272,619.60 : x
  2. Step 2: Convert to fraction form
    651,796.80/977,646.60 = 272,619.60/x
  3. Step 3: Cross multiply
    651,796.80x = 977,646.60 × 272,619.60
  4. Step 4: Simplify right side
    651,796.80x = 266,525,625,033.36
  5. Step 5: Solve for x
    x = 266,525,625,033.36/651,796.80
  6. Step 6: Final answer
    x = 408,909.07

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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.