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Finding the Fourth Proportional to 652,039.80, 978,011.10 and 272,862.60

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Solution

The fourth proportional to 652,039.80, 978,011.10 and 272,862.60 is: 409,273.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,039.80 : 978,011.10 = 272,862.60 : x
  2. Step 2: Convert to fraction form
    652,039.80/978,011.10 = 272,862.60/x
  3. Step 3: Cross multiply
    652,039.80x = 978,011.10 × 272,862.60
  4. Step 4: Simplify right side
    652,039.80x = 266,862,651,574.86
  5. Step 5: Solve for x
    x = 266,862,651,574.86/652,039.80
  6. Step 6: Final answer
    x = 409,273.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.