Home / 1,217,104.52-1,679,038.54-787,523.18

Finding the Fourth Proportional to 1,217,104.52, 1,679,038.54 and 787,523.18

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Solution

The fourth proportional to 1,217,104.52, 1,679,038.54 and 787,523.18 is: 1,086,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,104.52 : 1,679,038.54 = 787,523.18 : x
  2. Step 2: Convert to fraction form
    1,217,104.52/1,679,038.54 = 787,523.18/x
  3. Step 3: Cross multiply
    1,217,104.52x = 1,679,038.54 × 787,523.18
  4. Step 4: Simplify right side
    1,217,104.52x = 1,322,281,759,999.36
  5. Step 5: Solve for x
    x = 1,322,281,759,999.36/1,217,104.52
  6. Step 6: Final answer
    x = 1,086,415.95

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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.