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Finding the Fourth Proportional to 587,282.52, 810,428.22 and 319,004.76

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Solution

The fourth proportional to 587,282.52, 810,428.22 and 319,004.76 is: 440,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,282.52 : 810,428.22 = 319,004.76 : x
  2. Step 2: Convert to fraction form
    587,282.52/810,428.22 = 319,004.76/x
  3. Step 3: Cross multiply
    587,282.52x = 810,428.22 × 319,004.76
  4. Step 4: Simplify right side
    587,282.52x = 258,530,459,818.33
  5. Step 5: Solve for x
    x = 258,530,459,818.33/587,282.52
  6. Step 6: Final answer
    x = 440,214.80

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1.5x scale

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.