Home / 389,084.40-583,626.60-108,601.20

Finding the Fourth Proportional to 389,084.40, 583,626.60 and 108,601.20

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Solution

The fourth proportional to 389,084.40, 583,626.60 and 108,601.20 is: 162,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,084.40 : 583,626.60 = 108,601.20 : x
  2. Step 2: Convert to fraction form
    389,084.40/583,626.60 = 108,601.20/x
  3. Step 3: Cross multiply
    389,084.40x = 583,626.60 × 108,601.20
  4. Step 4: Simplify right side
    389,084.40x = 63,382,549,111.92
  5. Step 5: Solve for x
    x = 63,382,549,111.92/389,084.40
  6. Step 6: Final answer
    x = 162,901.80

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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.