Home / 913,287.32-1,260,317.63-505,388.88

Finding the Fourth Proportional to 913,287.32, 1,260,317.63 and 505,388.88

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Solution

The fourth proportional to 913,287.32, 1,260,317.63 and 505,388.88 is: 697,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,287.32 : 1,260,317.63 = 505,388.88 : x
  2. Step 2: Convert to fraction form
    913,287.32/1,260,317.63 = 505,388.88/x
  3. Step 3: Cross multiply
    913,287.32x = 1,260,317.63 × 505,388.88
  4. Step 4: Simplify right side
    913,287.32x = 636,950,512,943.01
  5. Step 5: Solve for x
    x = 636,950,512,943.01/913,287.32
  6. Step 6: Final answer
    x = 697,426.21

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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.