Home / 691,662.80-1,034,383.80-579,688.40

Finding the Fourth Proportional to 691,662.80, 1,034,383.80 and 579,688.40

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Solution

The fourth proportional to 691,662.80, 1,034,383.80 and 579,688.40 is: 866,925.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,662.80 : 1,034,383.80 = 579,688.40 : x
  2. Step 2: Convert to fraction form
    691,662.80/1,034,383.80 = 579,688.40/x
  3. Step 3: Cross multiply
    691,662.80x = 1,034,383.80 × 579,688.40
  4. Step 4: Simplify right side
    691,662.80x = 599,620,290,007.92
  5. Step 5: Solve for x
    x = 599,620,290,007.92/691,662.80
  6. Step 6: Final answer
    x = 866,925.75

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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.