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Finding the Fourth Proportional to 668,257.20, 922,206.90 and 362,343.90

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Solution

The fourth proportional to 668,257.20, 922,206.90 and 362,343.90 is: 500,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,257.20 : 922,206.90 = 362,343.90 : x
  2. Step 2: Convert to fraction form
    668,257.20/922,206.90 = 362,343.90/x
  3. Step 3: Cross multiply
    668,257.20x = 922,206.90 × 362,343.90
  4. Step 4: Simplify right side
    668,257.20x = 334,156,044,752.91
  5. Step 5: Solve for x
    x = 334,156,044,752.91/668,257.20
  6. Step 6: Final answer
    x = 500,041.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.