Home / 572,964.12-789,869.34-402,669.72

Finding the Fourth Proportional to 572,964.12, 789,869.34 and 402,669.72

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Solution

The fourth proportional to 572,964.12, 789,869.34 and 402,669.72 is: 555,107.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,964.12 : 789,869.34 = 402,669.72 : x
  2. Step 2: Convert to fraction form
    572,964.12/789,869.34 = 402,669.72/x
  3. Step 3: Cross multiply
    572,964.12x = 789,869.34 × 402,669.72
  4. Step 4: Simplify right side
    572,964.12x = 318,056,465,974.39
  5. Step 5: Solve for x
    x = 318,056,465,974.39/572,964.12
  6. Step 6: Final answer
    x = 555,107.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.