Home / 1,331,471.20-1,995,894.60-657,000.40

Finding the Fourth Proportional to 1,331,471.20, 1,995,894.60 and 657,000.40

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Solution

The fourth proportional to 1,331,471.20, 1,995,894.60 and 657,000.40 is: 984,853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,471.20 : 1,995,894.60 = 657,000.40 : x
  2. Step 2: Convert to fraction form
    1,331,471.20/1,995,894.60 = 657,000.40/x
  3. Step 3: Cross multiply
    1,331,471.20x = 1,995,894.60 × 657,000.40
  4. Step 4: Simplify right side
    1,331,471.20x = 1,311,303,550,557.84
  5. Step 5: Solve for x
    x = 1,311,303,550,557.84/1,331,471.20
  6. Step 6: Final answer
    x = 984,853.11

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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.