Home / 761,758.78-1,143,211.77-521,297.02

Finding the Fourth Proportional to 761,758.78, 1,143,211.77 and 521,297.02

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Solution

The fourth proportional to 761,758.78, 1,143,211.77 and 521,297.02 is: 782,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,758.78 : 1,143,211.77 = 521,297.02 : x
  2. Step 2: Convert to fraction form
    761,758.78/1,143,211.77 = 521,297.02/x
  3. Step 3: Cross multiply
    761,758.78x = 1,143,211.77 × 521,297.02
  4. Step 4: Simplify right side
    761,758.78x = 595,952,888,929.93
  5. Step 5: Solve for x
    x = 595,952,888,929.93/761,758.78
  6. Step 6: Final answer
    x = 782,338.06

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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.