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Finding the Fourth Proportional to 879,279.94, 1,318,230.88 and 347,199.22

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Solution

The fourth proportional to 879,279.94, 1,318,230.88 and 347,199.22 is: 520,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,279.94 : 1,318,230.88 = 347,199.22 : x
  2. Step 2: Convert to fraction form
    879,279.94/1,318,230.88 = 347,199.22/x
  3. Step 3: Cross multiply
    879,279.94x = 1,318,230.88 × 347,199.22
  4. Step 4: Simplify right side
    879,279.94x = 457,688,733,315.91
  5. Step 5: Solve for x
    x = 457,688,733,315.91/879,279.94
  6. Step 6: Final answer
    x = 520,526.75

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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.