Home / 1,188,623.76-1,782,916.20-478,633.92

Finding the Fourth Proportional to 1,188,623.76, 1,782,916.20 and 478,633.92

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Solution

The fourth proportional to 1,188,623.76, 1,782,916.20 and 478,633.92 is: 717,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,623.76 : 1,782,916.20 = 478,633.92 : x
  2. Step 2: Convert to fraction form
    1,188,623.76/1,782,916.20 = 478,633.92/x
  3. Step 3: Cross multiply
    1,188,623.76x = 1,782,916.20 × 478,633.92
  4. Step 4: Simplify right side
    1,188,623.76x = 853,364,169,837.50
  5. Step 5: Solve for x
    x = 853,364,169,837.50/1,188,623.76
  6. Step 6: Final answer
    x = 717,943.05

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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.