Home / 840,414.64-1,159,780.52-458,449.36

Finding the Fourth Proportional to 840,414.64, 1,159,780.52 and 458,449.36

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Solution

The fourth proportional to 840,414.64, 1,159,780.52 and 458,449.36 is: 632,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,414.64 : 1,159,780.52 = 458,449.36 : x
  2. Step 2: Convert to fraction form
    840,414.64/1,159,780.52 = 458,449.36/x
  3. Step 3: Cross multiply
    840,414.64x = 1,159,780.52 × 458,449.36
  4. Step 4: Simplify right side
    840,414.64x = 531,700,637,134.47
  5. Step 5: Solve for x
    x = 531,700,637,134.47/840,414.64
  6. Step 6: Final answer
    x = 632,664.65

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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.