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Finding the Fourth Proportional to 584,780.50, 806,999.52 and 316,508.50

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Solution

The fourth proportional to 584,780.50, 806,999.52 and 316,508.50 is: 436,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,780.50 : 806,999.52 = 316,508.50 : x
  2. Step 2: Convert to fraction form
    584,780.50/806,999.52 = 316,508.50/x
  3. Step 3: Cross multiply
    584,780.50x = 806,999.52 × 316,508.50
  4. Step 4: Simplify right side
    584,780.50x = 255,422,207,575.92
  5. Step 5: Solve for x
    x = 255,422,207,575.92/584,780.50
  6. Step 6: Final answer
    x = 436,783.05

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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.