Home / 906,006.64-1,250,289.94-498,115.40

Finding the Fourth Proportional to 906,006.64, 1,250,289.94 and 498,115.40

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Solution

The fourth proportional to 906,006.64, 1,250,289.94 and 498,115.40 is: 687,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,006.64 : 1,250,289.94 = 498,115.40 : x
  2. Step 2: Convert to fraction form
    906,006.64/1,250,289.94 = 498,115.40/x
  3. Step 3: Cross multiply
    906,006.64x = 1,250,289.94 × 498,115.40
  4. Step 4: Simplify right side
    906,006.64x = 622,788,673,579.08
  5. Step 5: Solve for x
    x = 622,788,673,579.08/906,006.64
  6. Step 6: Final answer
    x = 687,399.68

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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.