Home / 1,018.18-1,525.23-469.60

Finding the Fourth Proportional to 1,018.18, 1,525.23 and 469.60

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Solution

The fourth proportional to 1,018.18, 1,525.23 and 469.60 is: 703.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018.18 : 1,525.23 = 469.60 : x
  2. Step 2: Convert to fraction form
    1,018.18/1,525.23 = 469.60/x
  3. Step 3: Cross multiply
    1,018.18x = 1,525.23 × 469.60
  4. Step 4: Simplify right side
    1,018.18x = 716,248.01
  5. Step 5: Solve for x
    x = 716,248.01/1,018.18
  6. Step 6: Final answer
    x = 703.46

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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.