Home / 866,865.16-1,196,363.28-499,354.66

Finding the Fourth Proportional to 866,865.16, 1,196,363.28 and 499,354.66

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Solution

The fourth proportional to 866,865.16, 1,196,363.28 and 499,354.66 is: 689,160.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,865.16 : 1,196,363.28 = 499,354.66 : x
  2. Step 2: Convert to fraction form
    866,865.16/1,196,363.28 = 499,354.66/x
  3. Step 3: Cross multiply
    866,865.16x = 1,196,363.28 × 499,354.66
  4. Step 4: Simplify right side
    866,865.16x = 597,409,578,920.89
  5. Step 5: Solve for x
    x = 597,409,578,920.89/866,865.16
  6. Step 6: Final answer
    x = 689,160.91

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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.