Home / 913,826.36-1,370,886.42-314,640.20

Finding the Fourth Proportional to 913,826.36, 1,370,886.42 and 314,640.20

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Solution

The fourth proportional to 913,826.36, 1,370,886.42 and 314,640.20 is: 472,010.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,826.36 : 1,370,886.42 = 314,640.20 : x
  2. Step 2: Convert to fraction form
    913,826.36/1,370,886.42 = 314,640.20/x
  3. Step 3: Cross multiply
    913,826.36x = 1,370,886.42 × 314,640.20
  4. Step 4: Simplify right side
    913,826.36x = 431,335,977,366.08
  5. Step 5: Solve for x
    x = 431,335,977,366.08/913,826.36
  6. Step 6: Final answer
    x = 472,010.87

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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.