Home / 878,953.51-1,318,561.89-318,119.23

Finding the Fourth Proportional to 878,953.51, 1,318,561.89 and 318,119.23

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Solution

The fourth proportional to 878,953.51, 1,318,561.89 and 318,119.23 is: 477,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,953.51 : 1,318,561.89 = 318,119.23 : x
  2. Step 2: Convert to fraction form
    878,953.51/1,318,561.89 = 318,119.23/x
  3. Step 3: Cross multiply
    878,953.51x = 1,318,561.89 × 318,119.23
  4. Step 4: Simplify right side
    878,953.51x = 419,459,893,154.15
  5. Step 5: Solve for x
    x = 419,459,893,154.15/878,953.51
  6. Step 6: Final answer
    x = 477,226.48

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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.