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Finding the Fourth Proportional to 722,375.46, 996,885.46 and 435,840.20

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Solution

The fourth proportional to 722,375.46, 996,885.46 and 435,840.20 is: 601,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,375.46 : 996,885.46 = 435,840.20 : x
  2. Step 2: Convert to fraction form
    722,375.46/996,885.46 = 435,840.20/x
  3. Step 3: Cross multiply
    722,375.46x = 996,885.46 × 435,840.20
  4. Step 4: Simplify right side
    722,375.46x = 434,482,758,263.49
  5. Step 5: Solve for x
    x = 434,482,758,263.49/722,375.46
  6. Step 6: Final answer
    x = 601,463.90

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1.5x scale

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.