Home / 1,121,482.10-1,680,218.40-682,502.60

Finding the Fourth Proportional to 1,121,482.10, 1,680,218.40 and 682,502.60

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Solution

The fourth proportional to 1,121,482.10, 1,680,218.40 and 682,502.60 is: 1,022,533.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,482.10 : 1,680,218.40 = 682,502.60 : x
  2. Step 2: Convert to fraction form
    1,121,482.10/1,680,218.40 = 682,502.60/x
  3. Step 3: Cross multiply
    1,121,482.10x = 1,680,218.40 × 682,502.60
  4. Step 4: Simplify right side
    1,121,482.10x = 1,146,753,426,567.84
  5. Step 5: Solve for x
    x = 1,146,753,426,567.84/1,121,482.10
  6. Step 6: Final answer
    x = 1,022,533.87

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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.