Home / 948,642.47-1,309,109.41-518,918.84

Finding the Fourth Proportional to 948,642.47, 1,309,109.41 and 518,918.84

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Solution

The fourth proportional to 948,642.47, 1,309,109.41 and 518,918.84 is: 716,098.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,642.47 : 1,309,109.41 = 518,918.84 : x
  2. Step 2: Convert to fraction form
    948,642.47/1,309,109.41 = 518,918.84/x
  3. Step 3: Cross multiply
    948,642.47x = 1,309,109.41 × 518,918.84
  4. Step 4: Simplify right side
    948,642.47x = 679,321,536,470.28
  5. Step 5: Solve for x
    x = 679,321,536,470.28/948,642.47
  6. Step 6: Final answer
    x = 716,098.59

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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.