Home / 765,334.16-1,055,807.74-493,489.37

Finding the Fourth Proportional to 765,334.16, 1,055,807.74 and 493,489.37

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Solution

The fourth proportional to 765,334.16, 1,055,807.74 and 493,489.37 is: 680,787.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,334.16 : 1,055,807.74 = 493,489.37 : x
  2. Step 2: Convert to fraction form
    765,334.16/1,055,807.74 = 493,489.37/x
  3. Step 3: Cross multiply
    765,334.16x = 1,055,807.74 × 493,489.37
  4. Step 4: Simplify right side
    765,334.16x = 521,029,896,453.72
  5. Step 5: Solve for x
    x = 521,029,896,453.72/765,334.16
  6. Step 6: Final answer
    x = 680,787.46

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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.