Home / 899,182.70-1,240,857.64-491,275.78

Finding the Fourth Proportional to 899,182.70, 1,240,857.64 and 491,275.78

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Solution

The fourth proportional to 899,182.70, 1,240,857.64 and 491,275.78 is: 677,952.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,182.70 : 1,240,857.64 = 491,275.78 : x
  2. Step 2: Convert to fraction form
    899,182.70/1,240,857.64 = 491,275.78/x
  3. Step 3: Cross multiply
    899,182.70x = 1,240,857.64 × 491,275.78
  4. Step 4: Simplify right side
    899,182.70x = 609,603,304,959.96
  5. Step 5: Solve for x
    x = 609,603,304,959.96/899,182.70
  6. Step 6: Final answer
    x = 677,952.66

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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.