Home / 740,671.56-1,022,209.92-418,402.44

Finding the Fourth Proportional to 740,671.56, 1,022,209.92 and 418,402.44

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Solution

The fourth proportional to 740,671.56, 1,022,209.92 and 418,402.44 is: 577,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,671.56 : 1,022,209.92 = 418,402.44 : x
  2. Step 2: Convert to fraction form
    740,671.56/1,022,209.92 = 418,402.44/x
  3. Step 3: Cross multiply
    740,671.56x = 1,022,209.92 × 418,402.44
  4. Step 4: Simplify right side
    740,671.56x = 427,695,124,720.21
  5. Step 5: Solve for x
    x = 427,695,124,720.21/740,671.56
  6. Step 6: Final answer
    x = 577,442.35

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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.