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Finding the Fourth Proportional to 928,287.04, 1,392,450 and 297,199.04

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Solution

The fourth proportional to 928,287.04, 1,392,450 and 297,199.04 is: 445,804.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,287.04 : 1,392,450 = 297,199.04 : x
  2. Step 2: Convert to fraction form
    928,287.04/1,392,450 = 297,199.04/x
  3. Step 3: Cross multiply
    928,287.04x = 1,392,450 × 297,199.04
  4. Step 4: Simplify right side
    928,287.04x = 413,834,803,248
  5. Step 5: Solve for x
    x = 413,834,803,248/928,287.04
  6. Step 6: Final answer
    x = 445,804.78

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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.