Home / 1,207,858.12-1,812,066.78-354,942.76

Finding the Fourth Proportional to 1,207,858.12, 1,812,066.78 and 354,942.76

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Solution

The fourth proportional to 1,207,858.12, 1,812,066.78 and 354,942.76 is: 532,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,858.12 : 1,812,066.78 = 354,942.76 : x
  2. Step 2: Convert to fraction form
    1,207,858.12/1,812,066.78 = 354,942.76/x
  3. Step 3: Cross multiply
    1,207,858.12x = 1,812,066.78 × 354,942.76
  4. Step 4: Simplify right side
    1,207,858.12x = 643,179,984,197.51
  5. Step 5: Solve for x
    x = 643,179,984,197.51/1,207,858.12
  6. Step 6: Final answer
    x = 532,496.30

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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.