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Finding the Fourth Proportional to 452,902.16, 679,382.40 and 265,520

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Solution

The fourth proportional to 452,902.16, 679,382.40 and 265,520 is: 398,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,902.16 : 679,382.40 = 265,520 : x
  2. Step 2: Convert to fraction form
    452,902.16/679,382.40 = 265,520/x
  3. Step 3: Cross multiply
    452,902.16x = 679,382.40 × 265,520
  4. Step 4: Simplify right side
    452,902.16x = 180,389,614,848
  5. Step 5: Solve for x
    x = 180,389,614,848/452,902.16
  6. Step 6: Final answer
    x = 398,297.10

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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.