Home / 1,238,120.92-1,708,678.02-694,431.10

Finding the Fourth Proportional to 1,238,120.92, 1,708,678.02 and 694,431.10

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Solution

The fourth proportional to 1,238,120.92, 1,708,678.02 and 694,431.10 is: 958,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,120.92 : 1,708,678.02 = 694,431.10 : x
  2. Step 2: Convert to fraction form
    1,238,120.92/1,708,678.02 = 694,431.10/x
  3. Step 3: Cross multiply
    1,238,120.92x = 1,708,678.02 × 694,431.10
  4. Step 4: Simplify right side
    1,238,120.92x = 1,186,559,156,974.42
  5. Step 5: Solve for x
    x = 1,186,559,156,974.42/1,238,120.92
  6. Step 6: Final answer
    x = 958,354.82

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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.