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Finding the Fourth Proportional to 585,270.84, 807,739.32 and 330,638.42

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Solution

The fourth proportional to 585,270.84, 807,739.32 and 330,638.42 is: 456,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,270.84 : 807,739.32 = 330,638.42 : x
  2. Step 2: Convert to fraction form
    585,270.84/807,739.32 = 330,638.42/x
  3. Step 3: Cross multiply
    585,270.84x = 807,739.32 × 330,638.42
  4. Step 4: Simplify right side
    585,270.84x = 267,069,652,536.67
  5. Step 5: Solve for x
    x = 267,069,652,536.67/585,270.84
  6. Step 6: Final answer
    x = 456,318.06

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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.