Home / 1,113.30-1,670.67-497.25

Finding the Fourth Proportional to 1,113.30, 1,670.67 and 497.25

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Solution

The fourth proportional to 1,113.30, 1,670.67 and 497.25 is: 746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.30 : 1,670.67 = 497.25 : x
  2. Step 2: Convert to fraction form
    1,113.30/1,670.67 = 497.25/x
  3. Step 3: Cross multiply
    1,113.30x = 1,670.67 × 497.25
  4. Step 4: Simplify right side
    1,113.30x = 830,740.66
  5. Step 5: Solve for x
    x = 830,740.66/1,113.30
  6. Step 6: Final answer
    x = 746.20

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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.