Home / 1,271,403.95-1,906,896.32-418,486.70

Finding the Fourth Proportional to 1,271,403.95, 1,906,896.32 and 418,486.70

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Solution

The fourth proportional to 1,271,403.95, 1,906,896.32 and 418,486.70 is: 627,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,403.95 : 1,906,896.32 = 418,486.70 : x
  2. Step 2: Convert to fraction form
    1,271,403.95/1,906,896.32 = 418,486.70/x
  3. Step 3: Cross multiply
    1,271,403.95x = 1,906,896.32 × 418,486.70
  4. Step 4: Simplify right side
    1,271,403.95x = 798,010,736,572.03
  5. Step 5: Solve for x
    x = 798,010,736,572.03/1,271,403.95
  6. Step 6: Final answer
    x = 627,661.05

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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.