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Finding the Fourth Proportional to 528,034.60, 790,302.30 and 486,044.20

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Solution

The fourth proportional to 528,034.60, 790,302.30 and 486,044.20 is: 727,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,034.60 : 790,302.30 = 486,044.20 : x
  2. Step 2: Convert to fraction form
    528,034.60/790,302.30 = 486,044.20/x
  3. Step 3: Cross multiply
    528,034.60x = 790,302.30 × 486,044.20
  4. Step 4: Simplify right side
    528,034.60x = 384,121,849,161.66
  5. Step 5: Solve for x
    x = 384,121,849,161.66/528,034.60
  6. Step 6: Final answer
    x = 727,455.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.