Home / 448,415.62-671,876.08-315,057.13

Finding the Fourth Proportional to 448,415.62, 671,876.08 and 315,057.13

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Solution

The fourth proportional to 448,415.62, 671,876.08 and 315,057.13 is: 472,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,415.62 : 671,876.08 = 315,057.13 : x
  2. Step 2: Convert to fraction form
    448,415.62/671,876.08 = 315,057.13/x
  3. Step 3: Cross multiply
    448,415.62x = 671,876.08 × 315,057.13
  4. Step 4: Simplify right side
    448,415.62x = 211,679,349,480.45
  5. Step 5: Solve for x
    x = 211,679,349,480.45/448,415.62
  6. Step 6: Final answer
    x = 472,060.61

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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.