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Finding the Fourth Proportional to 647,385.68, 966,284.74 and 607,494.80

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Solution

The fourth proportional to 647,385.68, 966,284.74 and 607,494.80 is: 906,743.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,385.68 : 966,284.74 = 607,494.80 : x
  2. Step 2: Convert to fraction form
    647,385.68/966,284.74 = 607,494.80/x
  3. Step 3: Cross multiply
    647,385.68x = 966,284.74 × 607,494.80
  4. Step 4: Simplify right side
    647,385.68x = 587,012,954,869.35
  5. Step 5: Solve for x
    x = 587,012,954,869.35/647,385.68
  6. Step 6: Final answer
    x = 906,743.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.