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Finding the Fourth Proportional to 858,195.72, 1,287,001.98 and 297,099

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Solution

The fourth proportional to 858,195.72, 1,287,001.98 and 297,099 is: 445,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,195.72 : 1,287,001.98 = 297,099 : x
  2. Step 2: Convert to fraction form
    858,195.72/1,287,001.98 = 297,099/x
  3. Step 3: Cross multiply
    858,195.72x = 1,287,001.98 × 297,099
  4. Step 4: Simplify right side
    858,195.72x = 382,367,001,256.02
  5. Step 5: Solve for x
    x = 382,367,001,256.02/858,195.72
  6. Step 6: Final answer
    x = 445,547.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.