Home / 691,220.10-1,036,674.55-247,988.10

Finding the Fourth Proportional to 691,220.10, 1,036,674.55 and 247,988.10

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Solution

The fourth proportional to 691,220.10, 1,036,674.55 and 247,988.10 is: 371,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,220.10 : 1,036,674.55 = 247,988.10 : x
  2. Step 2: Convert to fraction form
    691,220.10/1,036,674.55 = 247,988.10/x
  3. Step 3: Cross multiply
    691,220.10x = 1,036,674.55 × 247,988.10
  4. Step 4: Simplify right side
    691,220.10x = 257,082,951,972.86
  5. Step 5: Solve for x
    x = 257,082,951,972.86/691,220.10
  6. Step 6: Final answer
    x = 371,926.33

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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.