Home / 1,225,170.34-1,690,487.31-715,774.30

Finding the Fourth Proportional to 1,225,170.34, 1,690,487.31 and 715,774.30

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Solution

The fourth proportional to 1,225,170.34, 1,690,487.31 and 715,774.30 is: 987,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,170.34 : 1,690,487.31 = 715,774.30 : x
  2. Step 2: Convert to fraction form
    1,225,170.34/1,690,487.31 = 715,774.30/x
  3. Step 3: Cross multiply
    1,225,170.34x = 1,690,487.31 × 715,774.30
  4. Step 4: Simplify right side
    1,225,170.34x = 1,210,007,370,974.13
  5. Step 5: Solve for x
    x = 1,210,007,370,974.13/1,225,170.34
  6. Step 6: Final answer
    x = 987,623.79

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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.