Home / 761,918.92-1,051,449.58-422,387.16

Finding the Fourth Proportional to 761,918.92, 1,051,449.58 and 422,387.16

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Solution

The fourth proportional to 761,918.92, 1,051,449.58 and 422,387.16 is: 582,895.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,918.92 : 1,051,449.58 = 422,387.16 : x
  2. Step 2: Convert to fraction form
    761,918.92/1,051,449.58 = 422,387.16/x
  3. Step 3: Cross multiply
    761,918.92x = 1,051,449.58 × 422,387.16
  4. Step 4: Simplify right side
    761,918.92x = 444,118,801,979.39
  5. Step 5: Solve for x
    x = 444,118,801,979.39/761,918.92
  6. Step 6: Final answer
    x = 582,895.10

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1.5x scale

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.