Home / 643,701.76-966,188.25-483,219.70

Finding the Fourth Proportional to 643,701.76, 966,188.25 and 483,219.70

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Solution

The fourth proportional to 643,701.76, 966,188.25 and 483,219.70 is: 725,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,701.76 : 966,188.25 = 483,219.70 : x
  2. Step 2: Convert to fraction form
    643,701.76/966,188.25 = 483,219.70/x
  3. Step 3: Cross multiply
    643,701.76x = 966,188.25 × 483,219.70
  4. Step 4: Simplify right side
    643,701.76x = 466,881,196,308.53
  5. Step 5: Solve for x
    x = 466,881,196,308.53/643,701.76
  6. Step 6: Final answer
    x = 725,306.70

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Double scale
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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.