Home / 310,734.12-428,548.50-262,571.40

Finding the Fourth Proportional to 310,734.12, 428,548.50 and 262,571.40

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Solution

The fourth proportional to 310,734.12, 428,548.50 and 262,571.40 is: 362,124.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,734.12 : 428,548.50 = 262,571.40 : x
  2. Step 2: Convert to fraction form
    310,734.12/428,548.50 = 262,571.40/x
  3. Step 3: Cross multiply
    310,734.12x = 428,548.50 × 262,571.40
  4. Step 4: Simplify right side
    310,734.12x = 112,524,579,612.90
  5. Step 5: Solve for x
    x = 112,524,579,612.90/310,734.12
  6. Step 6: Final answer
    x = 362,124.96

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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.