Home / 906,702.71-1,251,200.32-498,738.70

Finding the Fourth Proportional to 906,702.71, 1,251,200.32 and 498,738.70

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Solution

The fourth proportional to 906,702.71, 1,251,200.32 and 498,738.70 is: 688,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,702.71 : 1,251,200.32 = 498,738.70 : x
  2. Step 2: Convert to fraction form
    906,702.71/1,251,200.32 = 498,738.70/x
  3. Step 3: Cross multiply
    906,702.71x = 1,251,200.32 × 498,738.70
  4. Step 4: Simplify right side
    906,702.71x = 624,022,012,286.69
  5. Step 5: Solve for x
    x = 624,022,012,286.69/906,702.71
  6. Step 6: Final answer
    x = 688,232.21

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Double scale
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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.