Home / 913,426.60-1,370,139.90-248,578.60

Finding the Fourth Proportional to 913,426.60, 1,370,139.90 and 248,578.60

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Solution

The fourth proportional to 913,426.60, 1,370,139.90 and 248,578.60 is: 372,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,426.60 : 1,370,139.90 = 248,578.60 : x
  2. Step 2: Convert to fraction form
    913,426.60/1,370,139.90 = 248,578.60/x
  3. Step 3: Cross multiply
    913,426.60x = 1,370,139.90 × 248,578.60
  4. Step 4: Simplify right side
    913,426.60x = 340,587,458,146.14
  5. Step 5: Solve for x
    x = 340,587,458,146.14/913,426.60
  6. Step 6: Final answer
    x = 372,867.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.