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Finding the Fourth Proportional to 488,814.16, 674,607 and 284,854

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Solution

The fourth proportional to 488,814.16, 674,607 and 284,854 is: 393,123.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,814.16 : 674,607 = 284,854 : x
  2. Step 2: Convert to fraction form
    488,814.16/674,607 = 284,854/x
  3. Step 3: Cross multiply
    488,814.16x = 674,607 × 284,854
  4. Step 4: Simplify right side
    488,814.16x = 192,164,502,378
  5. Step 5: Solve for x
    x = 192,164,502,378/488,814.16
  6. Step 6: Final answer
    x = 393,123.85

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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.