Home / 1,258,471.28-1,886,566.12-627,578.48

Finding the Fourth Proportional to 1,258,471.28, 1,886,566.12 and 627,578.48

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Solution

The fourth proportional to 1,258,471.28, 1,886,566.12 and 627,578.48 is: 940,798.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,471.28 : 1,886,566.12 = 627,578.48 : x
  2. Step 2: Convert to fraction form
    1,258,471.28/1,886,566.12 = 627,578.48/x
  3. Step 3: Cross multiply
    1,258,471.28x = 1,886,566.12 × 627,578.48
  4. Step 4: Simplify right side
    1,258,471.28x = 1,183,968,298,009.10
  5. Step 5: Solve for x
    x = 1,183,968,298,009.10/1,258,471.28
  6. Step 6: Final answer
    x = 940,798.82

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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.