Home / 780,988.22-1,171,508.11-268,648.22

Finding the Fourth Proportional to 780,988.22, 1,171,508.11 and 268,648.22

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Solution

The fourth proportional to 780,988.22, 1,171,508.11 and 268,648.22 is: 402,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,988.22 : 1,171,508.11 = 268,648.22 : x
  2. Step 2: Convert to fraction form
    780,988.22/1,171,508.11 = 268,648.22/x
  3. Step 3: Cross multiply
    780,988.22x = 1,171,508.11 × 268,648.22
  4. Step 4: Simplify right side
    780,988.22x = 314,723,572,235.36
  5. Step 5: Solve for x
    x = 314,723,572,235.36/780,988.22
  6. Step 6: Final answer
    x = 402,981.20

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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.