Home / 745.03-1,118.40-437.10

Finding the Fourth Proportional to 745.03, 1,118.40 and 437.10

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Solution

The fourth proportional to 745.03, 1,118.40 and 437.10 is: 656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    745.03 : 1,118.40 = 437.10 : x
  2. Step 2: Convert to fraction form
    745.03/1,118.40 = 437.10/x
  3. Step 3: Cross multiply
    745.03x = 1,118.40 × 437.10
  4. Step 4: Simplify right side
    745.03x = 488,852.64
  5. Step 5: Solve for x
    x = 488,852.64/745.03
  6. Step 6: Final answer
    x = 656.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.