Home / 388,946.20-583,419.30-330,626.20

Finding the Fourth Proportional to 388,946.20, 583,419.30 and 330,626.20

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Solution

The fourth proportional to 388,946.20, 583,419.30 and 330,626.20 is: 495,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,946.20 : 583,419.30 = 330,626.20 : x
  2. Step 2: Convert to fraction form
    388,946.20/583,419.30 = 330,626.20/x
  3. Step 3: Cross multiply
    388,946.20x = 583,419.30 × 330,626.20
  4. Step 4: Simplify right side
    388,946.20x = 192,893,706,165.66
  5. Step 5: Solve for x
    x = 192,893,706,165.66/388,946.20
  6. Step 6: Final answer
    x = 495,939.30

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Similar ratio
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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.