Home / 879,432.30-1,319,375.86-515,001.66

Finding the Fourth Proportional to 879,432.30, 1,319,375.86 and 515,001.66

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Solution

The fourth proportional to 879,432.30, 1,319,375.86 and 515,001.66 is: 772,635.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,432.30 : 1,319,375.86 = 515,001.66 : x
  2. Step 2: Convert to fraction form
    879,432.30/1,319,375.86 = 515,001.66/x
  3. Step 3: Cross multiply
    879,432.30x = 1,319,375.86 × 515,001.66
  4. Step 4: Simplify right side
    879,432.30x = 679,480,758,063.93
  5. Step 5: Solve for x
    x = 679,480,758,063.93/879,432.30
  6. Step 6: Final answer
    x = 772,635.66

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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.