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Finding the Fourth Proportional to 585,507.73, 807,990.15 and 330,853.45

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Solution

The fourth proportional to 585,507.73, 807,990.15 and 330,853.45 is: 456,571.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,507.73 : 807,990.15 = 330,853.45 : x
  2. Step 2: Convert to fraction form
    585,507.73/807,990.15 = 330,853.45/x
  3. Step 3: Cross multiply
    585,507.73x = 807,990.15 × 330,853.45
  4. Step 4: Simplify right side
    585,507.73x = 267,326,328,693.52
  5. Step 5: Solve for x
    x = 267,326,328,693.52/585,507.73
  6. Step 6: Final answer
    x = 456,571.82

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1.5x scale

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.