Home / 480,334.07-720,487.44-143,377.51

Finding the Fourth Proportional to 480,334.07, 720,487.44 and 143,377.51

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Solution

The fourth proportional to 480,334.07, 720,487.44 and 143,377.51 is: 215,062.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,334.07 : 720,487.44 = 143,377.51 : x
  2. Step 2: Convert to fraction form
    480,334.07/720,487.44 = 143,377.51/x
  3. Step 3: Cross multiply
    480,334.07x = 720,487.44 × 143,377.51
  4. Step 4: Simplify right side
    480,334.07x = 103,301,695,133.47
  5. Step 5: Solve for x
    x = 103,301,695,133.47/480,334.07
  6. Step 6: Final answer
    x = 215,062.19

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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.