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Finding the Fourth Proportional to 559,516.32, 839,280.33 and 447,906.15

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Solution

The fourth proportional to 559,516.32, 839,280.33 and 447,906.15 is: 671,863.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,516.32 : 839,280.33 = 447,906.15 : x
  2. Step 2: Convert to fraction form
    559,516.32/839,280.33 = 447,906.15/x
  3. Step 3: Cross multiply
    559,516.32x = 839,280.33 × 447,906.15
  4. Step 4: Simplify right side
    559,516.32x = 375,918,821,381.03
  5. Step 5: Solve for x
    x = 375,918,821,381.03/559,516.32
  6. Step 6: Final answer
    x = 671,863.91

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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.