Home / 851,717.13-1,279,430.24-514,916.39

Finding the Fourth Proportional to 851,717.13, 1,279,430.24 and 514,916.39

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Solution

The fourth proportional to 851,717.13, 1,279,430.24 and 514,916.39 is: 773,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,717.13 : 1,279,430.24 = 514,916.39 : x
  2. Step 2: Convert to fraction form
    851,717.13/1,279,430.24 = 514,916.39/x
  3. Step 3: Cross multiply
    851,717.13x = 1,279,430.24 × 514,916.39
  4. Step 4: Simplify right side
    851,717.13x = 658,799,601,061.63
  5. Step 5: Solve for x
    x = 658,799,601,061.63/851,717.13
  6. Step 6: Final answer
    x = 773,495.78

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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.