Home / 1,217,154.88-1,679,108.16-787,573.56

Finding the Fourth Proportional to 1,217,154.88, 1,679,108.16 and 787,573.56

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Solution

The fourth proportional to 1,217,154.88, 1,679,108.16 and 787,573.56 is: 1,086,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,154.88 : 1,679,108.16 = 787,573.56 : x
  2. Step 2: Convert to fraction form
    1,217,154.88/1,679,108.16 = 787,573.56/x
  3. Step 3: Cross multiply
    1,217,154.88x = 1,679,108.16 × 787,573.56
  4. Step 4: Simplify right side
    1,217,154.88x = 1,322,421,191,196.25
  5. Step 5: Solve for x
    x = 1,322,421,191,196.25/1,217,154.88
  6. Step 6: Final answer
    x = 1,086,485.55

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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.