Home / 753,135.26-1,039,322.90-408,968.12

Finding the Fourth Proportional to 753,135.26, 1,039,322.90 and 408,968.12

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Solution

The fourth proportional to 753,135.26, 1,039,322.90 and 408,968.12 is: 564,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,135.26 : 1,039,322.90 = 408,968.12 : x
  2. Step 2: Convert to fraction form
    753,135.26/1,039,322.90 = 408,968.12/x
  3. Step 3: Cross multiply
    753,135.26x = 1,039,322.90 × 408,968.12
  4. Step 4: Simplify right side
    753,135.26x = 425,049,932,485.95
  5. Step 5: Solve for x
    x = 425,049,932,485.95/753,135.26
  6. Step 6: Final answer
    x = 564,373.96

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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.