Home / 453,742.38-679,864.73-263,669.20

Finding the Fourth Proportional to 453,742.38, 679,864.73 and 263,669.20

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Solution

The fourth proportional to 453,742.38, 679,864.73 and 263,669.20 is: 395,068.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,742.38 : 679,864.73 = 263,669.20 : x
  2. Step 2: Convert to fraction form
    453,742.38/679,864.73 = 263,669.20/x
  3. Step 3: Cross multiply
    453,742.38x = 679,864.73 × 263,669.20
  4. Step 4: Simplify right side
    453,742.38x = 179,259,386,449.31
  5. Step 5: Solve for x
    x = 179,259,386,449.31/453,742.38
  6. Step 6: Final answer
    x = 395,068.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.