Home / 698,689.91-1,047,287.41-361,390.97

Finding the Fourth Proportional to 698,689.91, 1,047,287.41 and 361,390.97

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Solution

The fourth proportional to 698,689.91, 1,047,287.41 and 361,390.97 is: 541,699.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,689.91 : 1,047,287.41 = 361,390.97 : x
  2. Step 2: Convert to fraction form
    698,689.91/1,047,287.41 = 361,390.97/x
  3. Step 3: Cross multiply
    698,689.91x = 1,047,287.41 × 361,390.97
  4. Step 4: Simplify right side
    698,689.91x = 378,480,212,968.69
  5. Step 5: Solve for x
    x = 378,480,212,968.69/698,689.91
  6. Step 6: Final answer
    x = 541,699.84

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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.