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Finding the Fourth Proportional to 587,370.88, 810,566.40 and 319,098.88

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Solution

The fourth proportional to 587,370.88, 810,566.40 and 319,098.88 is: 440,353.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,370.88 : 810,566.40 = 319,098.88 : x
  2. Step 2: Convert to fraction form
    587,370.88/810,566.40 = 319,098.88/x
  3. Step 3: Cross multiply
    587,370.88x = 810,566.40 × 319,098.88
  4. Step 4: Simplify right side
    587,370.88x = 258,650,830,405.63
  5. Step 5: Solve for x
    x = 258,650,830,405.63/587,370.88
  6. Step 6: Final answer
    x = 440,353.51

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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.