Home / 899,126.19-1,240,879.97-491,290.04

Finding the Fourth Proportional to 899,126.19, 1,240,879.97 and 491,290.04

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Solution

The fourth proportional to 899,126.19, 1,240,879.97 and 491,290.04 is: 678,027.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,126.19 : 1,240,879.97 = 491,290.04 : x
  2. Step 2: Convert to fraction form
    899,126.19/1,240,879.97 = 491,290.04/x
  3. Step 3: Cross multiply
    899,126.19x = 1,240,879.97 × 491,290.04
  4. Step 4: Simplify right side
    899,126.19x = 609,631,974,426.92
  5. Step 5: Solve for x
    x = 609,631,974,426.92/899,126.19
  6. Step 6: Final answer
    x = 678,027.16

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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.