Home / 761,757.78-1,143,210.27-521,296.02

Finding the Fourth Proportional to 761,757.78, 1,143,210.27 and 521,296.02

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Solution

The fourth proportional to 761,757.78, 1,143,210.27 and 521,296.02 is: 782,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,757.78 : 1,143,210.27 = 521,296.02 : x
  2. Step 2: Convert to fraction form
    761,757.78/1,143,210.27 = 521,296.02/x
  3. Step 3: Cross multiply
    761,757.78x = 1,143,210.27 × 521,296.02
  4. Step 4: Simplify right side
    761,757.78x = 595,950,963,774.13
  5. Step 5: Solve for x
    x = 595,950,963,774.13/761,757.78
  6. Step 6: Final answer
    x = 782,336.56

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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.