Home / 842,724.32-1,264,585.40-310,619.12

Finding the Fourth Proportional to 842,724.32, 1,264,585.40 and 310,619.12

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Solution

The fourth proportional to 842,724.32, 1,264,585.40 and 310,619.12 is: 466,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,724.32 : 1,264,585.40 = 310,619.12 : x
  2. Step 2: Convert to fraction form
    842,724.32/1,264,585.40 = 310,619.12/x
  3. Step 3: Cross multiply
    842,724.32x = 1,264,585.40 × 310,619.12
  4. Step 4: Simplify right side
    842,724.32x = 392,804,404,112.85
  5. Step 5: Solve for x
    x = 392,804,404,112.85/842,724.32
  6. Step 6: Final answer
    x = 466,112.58

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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.