Home / 727,819.83-1,091,357.01-391,143.96

Finding the Fourth Proportional to 727,819.83, 1,091,357.01 and 391,143.96

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Solution

The fourth proportional to 727,819.83, 1,091,357.01 and 391,143.96 is: 586,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,819.83 : 1,091,357.01 = 391,143.96 : x
  2. Step 2: Convert to fraction form
    727,819.83/1,091,357.01 = 391,143.96/x
  3. Step 3: Cross multiply
    727,819.83x = 1,091,357.01 × 391,143.96
  4. Step 4: Simplify right side
    727,819.83x = 426,877,702,665.16
  5. Step 5: Solve for x
    x = 426,877,702,665.16/727,819.83
  6. Step 6: Final answer
    x = 586,515.63

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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.