Home / 772,175.61-1,065,241.94-485,853.57

Finding the Fourth Proportional to 772,175.61, 1,065,241.94 and 485,853.57

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Solution

The fourth proportional to 772,175.61, 1,065,241.94 and 485,853.57 is: 670,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,175.61 : 1,065,241.94 = 485,853.57 : x
  2. Step 2: Convert to fraction form
    772,175.61/1,065,241.94 = 485,853.57/x
  3. Step 3: Cross multiply
    772,175.61x = 1,065,241.94 × 485,853.57
  4. Step 4: Simplify right side
    772,175.61x = 517,551,597,033.46
  5. Step 5: Solve for x
    x = 517,551,597,033.46/772,175.61
  6. Step 6: Final answer
    x = 670,251.16

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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.