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Finding the Fourth Proportional to 585,449.48, 807,909.72 and 330,795.20

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Solution

The fourth proportional to 585,449.48, 807,909.72 and 330,795.20 is: 456,491.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,449.48 : 807,909.72 = 330,795.20 : x
  2. Step 2: Convert to fraction form
    585,449.48/807,909.72 = 330,795.20/x
  3. Step 3: Cross multiply
    585,449.48x = 807,909.72 × 330,795.20
  4. Step 4: Simplify right side
    585,449.48x = 267,252,657,409.34
  5. Step 5: Solve for x
    x = 267,252,657,409.34/585,449.48
  6. Step 6: Final answer
    x = 456,491.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.