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Finding the Fourth Proportional to 585,508.08, 807,990.66 and 330,853.80

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Solution

The fourth proportional to 585,508.08, 807,990.66 and 330,853.80 is: 456,572.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,508.08 : 807,990.66 = 330,853.80 : x
  2. Step 2: Convert to fraction form
    585,508.08/807,990.66 = 330,853.80/x
  3. Step 3: Cross multiply
    585,508.08x = 807,990.66 × 330,853.80
  4. Step 4: Simplify right side
    585,508.08x = 267,326,780,225.51
  5. Step 5: Solve for x
    x = 267,326,780,225.51/585,508.08
  6. Step 6: Final answer
    x = 456,572.32

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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.