Home / 486,480.72-729,721.08-144,929.34

Finding the Fourth Proportional to 486,480.72, 729,721.08 and 144,929.34

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Solution

The fourth proportional to 486,480.72, 729,721.08 and 144,929.34 is: 217,394.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,480.72 : 729,721.08 = 144,929.34 : x
  2. Step 2: Convert to fraction form
    486,480.72/729,721.08 = 144,929.34/x
  3. Step 3: Cross multiply
    486,480.72x = 729,721.08 × 144,929.34
  4. Step 4: Simplify right side
    486,480.72x = 105,757,994,508.49
  5. Step 5: Solve for x
    x = 105,757,994,508.49/486,480.72
  6. Step 6: Final answer
    x = 217,394.01

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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.