Home / 1,148,432.32-1,584,821.14-639,134.56

Finding the Fourth Proportional to 1,148,432.32, 1,584,821.14 and 639,134.56

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Solution

The fourth proportional to 1,148,432.32, 1,584,821.14 and 639,134.56 is: 881,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,432.32 : 1,584,821.14 = 639,134.56 : x
  2. Step 2: Convert to fraction form
    1,148,432.32/1,584,821.14 = 639,134.56/x
  3. Step 3: Cross multiply
    1,148,432.32x = 1,584,821.14 × 639,134.56
  4. Step 4: Simplify right side
    1,148,432.32x = 1,012,913,961,992.60
  5. Step 5: Solve for x
    x = 1,012,913,961,992.60/1,148,432.32
  6. Step 6: Final answer
    x = 881,997.09

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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.