Home / 486,417.29-729,628.09-149,455.13

Finding the Fourth Proportional to 486,417.29, 729,628.09 and 149,455.13

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Solution

The fourth proportional to 486,417.29, 729,628.09 and 149,455.13 is: 224,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,417.29 : 729,628.09 = 149,455.13 : x
  2. Step 2: Convert to fraction form
    486,417.29/729,628.09 = 149,455.13/x
  3. Step 3: Cross multiply
    486,417.29x = 729,628.09 × 149,455.13
  4. Step 4: Simplify right side
    486,417.29x = 109,046,657,020.82
  5. Step 5: Solve for x
    x = 109,046,657,020.82/486,417.29
  6. Step 6: Final answer
    x = 224,183.35

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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.