Home / 744,356.21-1,026,979.85-422,041.01

Finding the Fourth Proportional to 744,356.21, 1,026,979.85 and 422,041.01

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Solution

The fourth proportional to 744,356.21, 1,026,979.85 and 422,041.01 is: 582,285.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,356.21 : 1,026,979.85 = 422,041.01 : x
  2. Step 2: Convert to fraction form
    744,356.21/1,026,979.85 = 422,041.01/x
  3. Step 3: Cross multiply
    744,356.21x = 1,026,979.85 × 422,041.01
  4. Step 4: Simplify right side
    744,356.21x = 433,427,611,033.44
  5. Step 5: Solve for x
    x = 433,427,611,033.44/744,356.21
  6. Step 6: Final answer
    x = 582,285.21

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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.