Home / 1,316.95-1,973.91-494.70

Finding the Fourth Proportional to 1,316.95, 1,973.91 and 494.70

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Solution

The fourth proportional to 1,316.95, 1,973.91 and 494.70 is: 741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.95 : 1,973.91 = 494.70 : x
  2. Step 2: Convert to fraction form
    1,316.95/1,973.91 = 494.70/x
  3. Step 3: Cross multiply
    1,316.95x = 1,973.91 × 494.70
  4. Step 4: Simplify right side
    1,316.95x = 976,493.28
  5. Step 5: Solve for x
    x = 976,493.28/1,316.95
  6. Step 6: Final answer
    x = 741.48

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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.