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Finding the Fourth Proportional to 876,372.40, 1,314,601.80 and 456,468.40

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Solution

The fourth proportional to 876,372.40, 1,314,601.80 and 456,468.40 is: 684,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,372.40 : 1,314,601.80 = 456,468.40 : x
  2. Step 2: Convert to fraction form
    876,372.40/1,314,601.80 = 456,468.40/x
  3. Step 3: Cross multiply
    876,372.40x = 1,314,601.80 × 456,468.40
  4. Step 4: Simplify right side
    876,372.40x = 600,074,180,283.12
  5. Step 5: Solve for x
    x = 600,074,180,283.12/876,372.40
  6. Step 6: Final answer
    x = 684,725.10

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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.