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Finding the Fourth Proportional to 453,405.98, 679,175.58 and 265,965.50

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Solution

The fourth proportional to 453,405.98, 679,175.58 and 265,965.50 is: 398,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,405.98 : 679,175.58 = 265,965.50 : x
  2. Step 2: Convert to fraction form
    453,405.98/679,175.58 = 265,965.50/x
  3. Step 3: Cross multiply
    453,405.98x = 679,175.58 × 265,965.50
  4. Step 4: Simplify right side
    453,405.98x = 180,637,272,722.49
  5. Step 5: Solve for x
    x = 180,637,272,722.49/453,405.98
  6. Step 6: Final answer
    x = 398,400.73

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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.