Home / 689,134.44-1,031,759.82-520,117.14

Finding the Fourth Proportional to 689,134.44, 1,031,759.82 and 520,117.14

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Solution

The fourth proportional to 689,134.44, 1,031,759.82 and 520,117.14 is: 778,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,134.44 : 1,031,759.82 = 520,117.14 : x
  2. Step 2: Convert to fraction form
    689,134.44/1,031,759.82 = 520,117.14/x
  3. Step 3: Cross multiply
    689,134.44x = 1,031,759.82 × 520,117.14
  4. Step 4: Simplify right side
    689,134.44x = 536,635,966,745.32
  5. Step 5: Solve for x
    x = 536,635,966,745.32/689,134.44
  6. Step 6: Final answer
    x = 778,710.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.