Home / 679,756.26-1,019,660.34-253,398.18

Finding the Fourth Proportional to 679,756.26, 1,019,660.34 and 253,398.18

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Solution

The fourth proportional to 679,756.26, 1,019,660.34 and 253,398.18 is: 380,106.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,756.26 : 1,019,660.34 = 253,398.18 : x
  2. Step 2: Convert to fraction form
    679,756.26/1,019,660.34 = 253,398.18/x
  3. Step 3: Cross multiply
    679,756.26x = 1,019,660.34 × 253,398.18
  4. Step 4: Simplify right side
    679,756.26x = 258,380,074,374.18
  5. Step 5: Solve for x
    x = 258,380,074,374.18/679,756.26
  6. Step 6: Final answer
    x = 380,106.94

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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.