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Finding the Fourth Proportional to 580,287.08, 800,853.72 and 325,639.28

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Solution

The fourth proportional to 580,287.08, 800,853.72 and 325,639.28 is: 449,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,287.08 : 800,853.72 = 325,639.28 : x
  2. Step 2: Convert to fraction form
    580,287.08/800,853.72 = 325,639.28/x
  3. Step 3: Cross multiply
    580,287.08x = 800,853.72 × 325,639.28
  4. Step 4: Simplify right side
    580,287.08x = 260,789,429,547.11
  5. Step 5: Solve for x
    x = 260,789,429,547.11/580,287.08
  6. Step 6: Final answer
    x = 449,414.50

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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.