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Finding the Fourth Proportional to 659,367.68, 989,235.84 and 216,446.72

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Solution

The fourth proportional to 659,367.68, 989,235.84 and 216,446.72 is: 324,730.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,367.68 : 989,235.84 = 216,446.72 : x
  2. Step 2: Convert to fraction form
    659,367.68/989,235.84 = 216,446.72/x
  3. Step 3: Cross multiply
    659,367.68x = 989,235.84 × 216,446.72
  4. Step 4: Simplify right side
    659,367.68x = 214,116,852,874.45
  5. Step 5: Solve for x
    x = 214,116,852,874.45/659,367.68
  6. Step 6: Final answer
    x = 324,730.59

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1.5x scale

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.