Home / 921,905.08-1,381,948.26-441,578.20

Finding the Fourth Proportional to 921,905.08, 1,381,948.26 and 441,578.20

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Solution

The fourth proportional to 921,905.08, 1,381,948.26 and 441,578.20 is: 661,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,905.08 : 1,381,948.26 = 441,578.20 : x
  2. Step 2: Convert to fraction form
    921,905.08/1,381,948.26 = 441,578.20/x
  3. Step 3: Cross multiply
    921,905.08x = 1,381,948.26 × 441,578.20
  4. Step 4: Simplify right side
    921,905.08x = 610,238,225,143.93
  5. Step 5: Solve for x
    x = 610,238,225,143.93/921,905.08
  6. Step 6: Final answer
    x = 661,931.73

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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.