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Finding the Fourth Proportional to 636,535.92, 878,399.46 and 350,055.12

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Solution

The fourth proportional to 636,535.92, 878,399.46 and 350,055.12 is: 483,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,535.92 : 878,399.46 = 350,055.12 : x
  2. Step 2: Convert to fraction form
    636,535.92/878,399.46 = 350,055.12/x
  3. Step 3: Cross multiply
    636,535.92x = 878,399.46 × 350,055.12
  4. Step 4: Simplify right side
    636,535.92x = 307,488,228,378.24
  5. Step 5: Solve for x
    x = 307,488,228,378.24/636,535.92
  6. Step 6: Final answer
    x = 483,065.01

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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.