Home / 510,917.45-705,013.15-314,652.88

Finding the Fourth Proportional to 510,917.45, 705,013.15 and 314,652.88

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Solution

The fourth proportional to 510,917.45, 705,013.15 and 314,652.88 is: 434,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,917.45 : 705,013.15 = 314,652.88 : x
  2. Step 2: Convert to fraction form
    510,917.45/705,013.15 = 314,652.88/x
  3. Step 3: Cross multiply
    510,917.45x = 705,013.15 × 314,652.88
  4. Step 4: Simplify right side
    510,917.45x = 221,834,412,987.04
  5. Step 5: Solve for x
    x = 221,834,412,987.04/510,917.45
  6. Step 6: Final answer
    x = 434,188.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.