Home / 4,311,333.20-6,466,999.80-1,278,808.40

Finding the Fourth Proportional to 4,311,333.20, 6,466,999.80 and 1,278,808.40

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Solution

The fourth proportional to 4,311,333.20, 6,466,999.80 and 1,278,808.40 is: 1,918,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311,333.20 : 6,466,999.80 = 1,278,808.40 : x
  2. Step 2: Convert to fraction form
    4,311,333.20/6,466,999.80 = 1,278,808.40/x
  3. Step 3: Cross multiply
    4,311,333.20x = 6,466,999.80 × 1,278,808.40
  4. Step 4: Simplify right side
    4,311,333.20x = 8,270,053,667,038.32
  5. Step 5: Solve for x
    x = 8,270,053,667,038.32/4,311,333.20
  6. Step 6: Final answer
    x = 1,918,212.60

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1.5x scale

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.