Home / 380,721.81-571,117.99-124,555.80

Finding the Fourth Proportional to 380,721.81, 571,117.99 and 124,555.80

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Solution

The fourth proportional to 380,721.81, 571,117.99 and 124,555.80 is: 186,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,721.81 : 571,117.99 = 124,555.80 : x
  2. Step 2: Convert to fraction form
    380,721.81/571,117.99 = 124,555.80/x
  3. Step 3: Cross multiply
    380,721.81x = 571,117.99 × 124,555.80
  4. Step 4: Simplify right side
    380,721.81x = 71,136,058,138.84
  5. Step 5: Solve for x
    x = 71,136,058,138.84/380,721.81
  6. Step 6: Final answer
    x = 186,845.24

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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.