Home / 766,880.92-1,058,343.02-422,716.07

Finding the Fourth Proportional to 766,880.92, 1,058,343.02 and 422,716.07

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Solution

The fourth proportional to 766,880.92, 1,058,343.02 and 422,716.07 is: 583,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,880.92 : 1,058,343.02 = 422,716.07 : x
  2. Step 2: Convert to fraction form
    766,880.92/1,058,343.02 = 422,716.07/x
  3. Step 3: Cross multiply
    766,880.92x = 1,058,343.02 × 422,716.07
  4. Step 4: Simplify right side
    766,880.92x = 447,378,602,126.33
  5. Step 5: Solve for x
    x = 447,378,602,126.33/766,880.92
  6. Step 6: Final answer
    x = 583,374.28

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Double scale
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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.