Home / 906,320.96-1,250,694.28-498,421.54

Finding the Fourth Proportional to 906,320.96, 1,250,694.28 and 498,421.54

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Solution

The fourth proportional to 906,320.96, 1,250,694.28 and 498,421.54 is: 687,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,320.96 : 1,250,694.28 = 498,421.54 : x
  2. Step 2: Convert to fraction form
    906,320.96/1,250,694.28 = 498,421.54/x
  3. Step 3: Cross multiply
    906,320.96x = 1,250,694.28 × 498,421.54
  4. Step 4: Simplify right side
    906,320.96x = 623,372,969,106.79
  5. Step 5: Solve for x
    x = 623,372,969,106.79/906,320.96
  6. Step 6: Final answer
    x = 687,805.97

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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.