Home / 847,638.88-1,270,979.07-278,866.06

Finding the Fourth Proportional to 847,638.88, 1,270,979.07 and 278,866.06

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Solution

The fourth proportional to 847,638.88, 1,270,979.07 and 278,866.06 is: 418,141.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,638.88 : 1,270,979.07 = 278,866.06 : x
  2. Step 2: Convert to fraction form
    847,638.88/1,270,979.07 = 278,866.06/x
  3. Step 3: Cross multiply
    847,638.88x = 1,270,979.07 × 278,866.06
  4. Step 4: Simplify right side
    847,638.88x = 354,432,925,593.36
  5. Step 5: Solve for x
    x = 354,432,925,593.36/847,638.88
  6. Step 6: Final answer
    x = 418,141.42

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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.