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Finding the Fourth Proportional to 636,547.82, 878,418.48 and 350,067.92

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Solution

The fourth proportional to 636,547.82, 878,418.48 and 350,067.92 is: 483,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,547.82 : 878,418.48 = 350,067.92 : x
  2. Step 2: Convert to fraction form
    636,547.82/878,418.48 = 350,067.92/x
  3. Step 3: Cross multiply
    636,547.82x = 878,418.48 × 350,067.92
  4. Step 4: Simplify right side
    636,547.82x = 307,506,130,183.16
  5. Step 5: Solve for x
    x = 307,506,130,183.16/636,547.82
  6. Step 6: Final answer
    x = 483,084.10

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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.