Home / 867,098.12-1,196,666.22-499,689.56

Finding the Fourth Proportional to 867,098.12, 1,196,666.22 and 499,689.56

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Solution

The fourth proportional to 867,098.12, 1,196,666.22 and 499,689.56 is: 689,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,098.12 : 1,196,666.22 = 499,689.56 : x
  2. Step 2: Convert to fraction form
    867,098.12/1,196,666.22 = 499,689.56/x
  3. Step 3: Cross multiply
    867,098.12x = 1,196,666.22 × 499,689.56
  4. Step 4: Simplify right side
    867,098.12x = 597,961,616,938.66
  5. Step 5: Solve for x
    x = 597,961,616,938.66/867,098.12
  6. Step 6: Final answer
    x = 689,612.40

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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.