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Finding the Fourth Proportional to 906,750.70, 1,251,315.95 and 498,843.77

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Solution

The fourth proportional to 906,750.70, 1,251,315.95 and 498,843.77 is: 688,404.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,750.70 : 1,251,315.95 = 498,843.77 : x
  2. Step 2: Convert to fraction form
    906,750.70/1,251,315.95 = 498,843.77/x
  3. Step 3: Cross multiply
    906,750.70x = 1,251,315.95 × 498,843.77
  4. Step 4: Simplify right side
    906,750.70x = 624,211,157,208.33
  5. Step 5: Solve for x
    x = 624,211,157,208.33/906,750.70
  6. Step 6: Final answer
    x = 688,404.38

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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.