Home / 812,347.66-1,218,776.39-488,508.48

Finding the Fourth Proportional to 812,347.66, 1,218,776.39 and 488,508.48

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Solution

The fourth proportional to 812,347.66, 1,218,776.39 and 488,508.48 is: 732,916.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,347.66 : 1,218,776.39 = 488,508.48 : x
  2. Step 2: Convert to fraction form
    812,347.66/1,218,776.39 = 488,508.48/x
  3. Step 3: Cross multiply
    812,347.66x = 1,218,776.39 × 488,508.48
  4. Step 4: Simplify right side
    812,347.66x = 595,382,601,128.15
  5. Step 5: Solve for x
    x = 595,382,601,128.15/812,347.66
  6. Step 6: Final answer
    x = 732,916.00

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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.