Home / 879,452.65-1,317,409.89-666,584.65

Finding the Fourth Proportional to 879,452.65, 1,317,409.89 and 666,584.65

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Solution

The fourth proportional to 879,452.65, 1,317,409.89 and 666,584.65 is: 998,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,452.65 : 1,317,409.89 = 666,584.65 : x
  2. Step 2: Convert to fraction form
    879,452.65/1,317,409.89 = 666,584.65/x
  3. Step 3: Cross multiply
    879,452.65x = 1,317,409.89 × 666,584.65
  4. Step 4: Simplify right side
    879,452.65x = 878,165,210,432.19
  5. Step 5: Solve for x
    x = 878,165,210,432.19/879,452.65
  6. Step 6: Final answer
    x = 998,536.09

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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.