Home / 1,225,368.88-1,690,759.08-715,972.72

Finding the Fourth Proportional to 1,225,368.88, 1,690,759.08 and 715,972.72

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Solution

The fourth proportional to 1,225,368.88, 1,690,759.08 and 715,972.72 is: 987,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,368.88 : 1,690,759.08 = 715,972.72 : x
  2. Step 2: Convert to fraction form
    1,225,368.88/1,690,759.08 = 715,972.72/x
  3. Step 3: Cross multiply
    1,225,368.88x = 1,690,759.08 × 715,972.72
  4. Step 4: Simplify right side
    1,225,368.88x = 1,210,537,377,372.30
  5. Step 5: Solve for x
    x = 1,210,537,377,372.30/1,225,368.88
  6. Step 6: Final answer
    x = 987,896.30

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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.