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Finding the Fourth Proportional to 488,718.02, 674,430.84 and 297,731.27

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Solution

The fourth proportional to 488,718.02, 674,430.84 and 297,731.27 is: 410,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,718.02 : 674,430.84 = 297,731.27 : x
  2. Step 2: Convert to fraction form
    488,718.02/674,430.84 = 297,731.27/x
  3. Step 3: Cross multiply
    488,718.02x = 674,430.84 × 297,731.27
  4. Step 4: Simplify right side
    488,718.02x = 200,799,147,148.21
  5. Step 5: Solve for x
    x = 200,799,147,148.21/488,718.02
  6. Step 6: Final answer
    x = 410,869.13

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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.