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Finding the Fourth Proportional to 578,073.24, 797,706.13 and 319,934.57

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Solution

The fourth proportional to 578,073.24, 797,706.13 and 319,934.57 is: 441,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,073.24 : 797,706.13 = 319,934.57 : x
  2. Step 2: Convert to fraction form
    578,073.24/797,706.13 = 319,934.57/x
  3. Step 3: Cross multiply
    578,073.24x = 797,706.13 × 319,934.57
  4. Step 4: Simplify right side
    578,073.24x = 255,213,763,699.38
  5. Step 5: Solve for x
    x = 255,213,763,699.38/578,073.24
  6. Step 6: Final answer
    x = 441,490.36

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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.