Home / 812,110.60-1,217,480.96-511,929.68

Finding the Fourth Proportional to 812,110.60, 1,217,480.96 and 511,929.68

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Solution

The fourth proportional to 812,110.60, 1,217,480.96 and 511,929.68 is: 767,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,110.60 : 1,217,480.96 = 511,929.68 : x
  2. Step 2: Convert to fraction form
    812,110.60/1,217,480.96 = 511,929.68/x
  3. Step 3: Cross multiply
    812,110.60x = 1,217,480.96 × 511,929.68
  4. Step 4: Simplify right side
    812,110.60x = 623,264,638,258.89
  5. Step 5: Solve for x
    x = 623,264,638,258.89/812,110.60
  6. Step 6: Final answer
    x = 767,462.75

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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.