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Finding the Fourth Proportional to 737.32, 1,017.58 and 418.36

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Solution

The fourth proportional to 737.32, 1,017.58 and 418.36 is: 577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.32 : 1,017.58 = 418.36 : x
  2. Step 2: Convert to fraction form
    737.32/1,017.58 = 418.36/x
  3. Step 3: Cross multiply
    737.32x = 1,017.58 × 418.36
  4. Step 4: Simplify right side
    737.32x = 425,714.77
  5. Step 5: Solve for x
    x = 425,714.77/737.32
  6. Step 6: Final answer
    x = 577.38

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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.