Home / 643,699.76-966,185.25-483,217.70

Finding the Fourth Proportional to 643,699.76, 966,185.25 and 483,217.70

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Solution

The fourth proportional to 643,699.76, 966,185.25 and 483,217.70 is: 725,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,699.76 : 966,185.25 = 483,217.70 : x
  2. Step 2: Convert to fraction form
    643,699.76/966,185.25 = 483,217.70/x
  3. Step 3: Cross multiply
    643,699.76x = 966,185.25 × 483,217.70
  4. Step 4: Simplify right side
    643,699.76x = 466,877,811,862.84
  5. Step 5: Solve for x
    x = 466,877,811,862.84/643,699.76
  6. Step 6: Final answer
    x = 725,303.69

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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.