Home / 769,855.82-1,062,378.95-425,685.74

Finding the Fourth Proportional to 769,855.82, 1,062,378.95 and 425,685.74

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Solution

The fourth proportional to 769,855.82, 1,062,378.95 and 425,685.74 is: 587,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,855.82 : 1,062,378.95 = 425,685.74 : x
  2. Step 2: Convert to fraction form
    769,855.82/1,062,378.95 = 425,685.74/x
  3. Step 3: Cross multiply
    769,855.82x = 1,062,378.95 × 425,685.74
  4. Step 4: Simplify right side
    769,855.82x = 452,239,569,491.17
  5. Step 5: Solve for x
    x = 452,239,569,491.17/769,855.82
  6. Step 6: Final answer
    x = 587,434.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.