Home / 740,726.32-1,022,197.56-418,540.72

Finding the Fourth Proportional to 740,726.32, 1,022,197.56 and 418,540.72

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Solution

The fourth proportional to 740,726.32, 1,022,197.56 and 418,540.72 is: 577,583.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,726.32 : 1,022,197.56 = 418,540.72 : x
  2. Step 2: Convert to fraction form
    740,726.32/1,022,197.56 = 418,540.72/x
  3. Step 3: Cross multiply
    740,726.32x = 1,022,197.56 × 418,540.72
  4. Step 4: Simplify right side
    740,726.32x = 427,831,302,744.64
  5. Step 5: Solve for x
    x = 427,831,302,744.64/740,726.32
  6. Step 6: Final answer
    x = 577,583.50

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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.