Home / 389,087.40-583,631.10-108,604.20

Finding the Fourth Proportional to 389,087.40, 583,631.10 and 108,604.20

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Solution

The fourth proportional to 389,087.40, 583,631.10 and 108,604.20 is: 162,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,087.40 : 583,631.10 = 108,604.20 : x
  2. Step 2: Convert to fraction form
    389,087.40/583,631.10 = 108,604.20/x
  3. Step 3: Cross multiply
    389,087.40x = 583,631.10 × 108,604.20
  4. Step 4: Simplify right side
    389,087.40x = 63,384,788,710.62
  5. Step 5: Solve for x
    x = 63,384,788,710.62/389,087.40
  6. Step 6: Final answer
    x = 162,906.30

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1.5x scale

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.