Home / 1,225,367.88-1,690,757.70-715,971.72

Finding the Fourth Proportional to 1,225,367.88, 1,690,757.70 and 715,971.72

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Solution

The fourth proportional to 1,225,367.88, 1,690,757.70 and 715,971.72 is: 987,894.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,367.88 : 1,690,757.70 = 715,971.72 : x
  2. Step 2: Convert to fraction form
    1,225,367.88/1,690,757.70 = 715,971.72/x
  3. Step 3: Cross multiply
    1,225,367.88x = 1,690,757.70 × 715,971.72
  4. Step 4: Simplify right side
    1,225,367.88x = 1,210,534,698,572.24
  5. Step 5: Solve for x
    x = 1,210,534,698,572.24/1,225,367.88
  6. Step 6: Final answer
    x = 987,894.92

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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.