Home / 761,918.40-1,051,405.92-422,435.52

Finding the Fourth Proportional to 761,918.40, 1,051,405.92 and 422,435.52

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Solution

The fourth proportional to 761,918.40, 1,051,405.92 and 422,435.52 is: 582,938.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,918.40 : 1,051,405.92 = 422,435.52 : x
  2. Step 2: Convert to fraction form
    761,918.40/1,051,405.92 = 422,435.52/x
  3. Step 3: Cross multiply
    761,918.40x = 1,051,405.92 × 422,435.52
  4. Step 4: Simplify right side
    761,918.40x = 444,151,206,546.28
  5. Step 5: Solve for x
    x = 444,151,206,546.28/761,918.40
  6. Step 6: Final answer
    x = 582,938.02

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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.