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Finding the Fourth Proportional to 928,311.04, 1,392,486 and 297,223

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Solution

The fourth proportional to 928,311.04, 1,392,486 and 297,223 is: 445,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,311.04 : 1,392,486 = 297,223 : x
  2. Step 2: Convert to fraction form
    928,311.04/1,392,486 = 297,223/x
  3. Step 3: Cross multiply
    928,311.04x = 1,392,486 × 297,223
  4. Step 4: Simplify right side
    928,311.04x = 413,878,866,378
  5. Step 5: Solve for x
    x = 413,878,866,378/928,311.04
  6. Step 6: Final answer
    x = 445,840.72

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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.