Home / 776,432.23-1,164,278.82-270,931.78

Finding the Fourth Proportional to 776,432.23, 1,164,278.82 and 270,931.78

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Solution

The fourth proportional to 776,432.23, 1,164,278.82 and 270,931.78 is: 406,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,432.23 : 1,164,278.82 = 270,931.78 : x
  2. Step 2: Convert to fraction form
    776,432.23/1,164,278.82 = 270,931.78/x
  3. Step 3: Cross multiply
    776,432.23x = 1,164,278.82 × 270,931.78
  4. Step 4: Simplify right side
    776,432.23x = 315,440,130,208.20
  5. Step 5: Solve for x
    x = 315,440,130,208.20/776,432.23
  6. Step 6: Final answer
    x = 406,268.72

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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.