Home / 486,712.60-729,945.66-145,077.19

Finding the Fourth Proportional to 486,712.60, 729,945.66 and 145,077.19

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Solution

The fourth proportional to 486,712.60, 729,945.66 and 145,077.19 is: 217,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,712.60 : 729,945.66 = 145,077.19 : x
  2. Step 2: Convert to fraction form
    486,712.60/729,945.66 = 145,077.19/x
  3. Step 3: Cross multiply
    486,712.60x = 729,945.66 × 145,077.19
  4. Step 4: Simplify right side
    486,712.60x = 105,898,461,555.77
  5. Step 5: Solve for x
    x = 105,898,461,555.77/486,712.60
  6. Step 6: Final answer
    x = 217,579.04

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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.