Home / 1,528,178.40-2,289,643.20-995,425.20

Finding the Fourth Proportional to 1,528,178.40, 2,289,643.20 and 995,425.20

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Solution

The fourth proportional to 1,528,178.40, 2,289,643.20 and 995,425.20 is: 1,491,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,178.40 : 2,289,643.20 = 995,425.20 : x
  2. Step 2: Convert to fraction form
    1,528,178.40/2,289,643.20 = 995,425.20/x
  3. Step 3: Cross multiply
    1,528,178.40x = 2,289,643.20 × 995,425.20
  4. Step 4: Simplify right side
    1,528,178.40x = 2,279,168,540,288.64
  5. Step 5: Solve for x
    x = 2,279,168,540,288.64/1,528,178.40
  6. Step 6: Final answer
    x = 1,491,428.32

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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.