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Finding the Fourth Proportional to 587,335, 810,522.30 and 319,063

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Solution

The fourth proportional to 587,335, 810,522.30 and 319,063 is: 440,306.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,335 : 810,522.30 = 319,063 : x
  2. Step 2: Convert to fraction form
    587,335/810,522.30 = 319,063/x
  3. Step 3: Cross multiply
    587,335x = 810,522.30 × 319,063
  4. Step 4: Simplify right side
    587,335x = 258,607,676,604.90
  5. Step 5: Solve for x
    x = 258,607,676,604.90/587,335
  6. Step 6: Final answer
    x = 440,306.94

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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.