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Finding the Fourth Proportional to 636,786.16, 878,751.48 and 350,301.04

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Solution

The fourth proportional to 636,786.16, 878,751.48 and 350,301.04 is: 483,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,786.16 : 878,751.48 = 350,301.04 : x
  2. Step 2: Convert to fraction form
    636,786.16/878,751.48 = 350,301.04/x
  3. Step 3: Cross multiply
    636,786.16x = 878,751.48 × 350,301.04
  4. Step 4: Simplify right side
    636,786.16x = 307,827,557,345.54
  5. Step 5: Solve for x
    x = 307,827,557,345.54/636,786.16
  6. Step 6: Final answer
    x = 483,408.05

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1.5x scale

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.