Home / 908,638.62-1,253,070.78-718,107.18

Finding the Fourth Proportional to 908,638.62, 1,253,070.78 and 718,107.18

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Solution

The fourth proportional to 908,638.62, 1,253,070.78 and 718,107.18 is: 990,315.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,638.62 : 1,253,070.78 = 718,107.18 : x
  2. Step 2: Convert to fraction form
    908,638.62/1,253,070.78 = 718,107.18/x
  3. Step 3: Cross multiply
    908,638.62x = 1,253,070.78 × 718,107.18
  4. Step 4: Simplify right side
    908,638.62x = 899,839,124,166.20
  5. Step 5: Solve for x
    x = 899,839,124,166.20/908,638.62
  6. Step 6: Final answer
    x = 990,315.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.