Home / 905,936.76-1,250,189.10-498,064.32

Finding the Fourth Proportional to 905,936.76, 1,250,189.10 and 498,064.32

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Solution

The fourth proportional to 905,936.76, 1,250,189.10 and 498,064.32 is: 687,326.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,936.76 : 1,250,189.10 = 498,064.32 : x
  2. Step 2: Convert to fraction form
    905,936.76/1,250,189.10 = 498,064.32/x
  3. Step 3: Cross multiply
    905,936.76x = 1,250,189.10 × 498,064.32
  4. Step 4: Simplify right side
    905,936.76x = 622,674,583,962.91
  5. Step 5: Solve for x
    x = 622,674,583,962.91/905,936.76
  6. Step 6: Final answer
    x = 687,326.77

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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.