Home / 1,335,211.10-2,002,816.65-978,292.70

Finding the Fourth Proportional to 1,335,211.10, 2,002,816.65 and 978,292.70

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Solution

The fourth proportional to 1,335,211.10, 2,002,816.65 and 978,292.70 is: 1,467,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,211.10 : 2,002,816.65 = 978,292.70 : x
  2. Step 2: Convert to fraction form
    1,335,211.10/2,002,816.65 = 978,292.70/x
  3. Step 3: Cross multiply
    1,335,211.10x = 2,002,816.65 × 978,292.70
  4. Step 4: Simplify right side
    1,335,211.10x = 1,959,340,908,133.45
  5. Step 5: Solve for x
    x = 1,959,340,908,133.45/1,335,211.10
  6. Step 6: Final answer
    x = 1,467,439.05

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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.