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Finding the Fourth Proportional to 407,271.60, 610,907.40 and 247,839.30

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Solution

The fourth proportional to 407,271.60, 610,907.40 and 247,839.30 is: 371,758.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,271.60 : 610,907.40 = 247,839.30 : x
  2. Step 2: Convert to fraction form
    407,271.60/610,907.40 = 247,839.30/x
  3. Step 3: Cross multiply
    407,271.60x = 610,907.40 × 247,839.30
  4. Step 4: Simplify right side
    407,271.60x = 151,406,862,380.82
  5. Step 5: Solve for x
    x = 151,406,862,380.82/407,271.60
  6. Step 6: Final answer
    x = 371,758.95

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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.