Home / 1,176.56-1,623.12-710.72

Finding the Fourth Proportional to 1,176.56, 1,623.12 and 710.72

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Solution

The fourth proportional to 1,176.56, 1,623.12 and 710.72 is: 980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.56 : 1,623.12 = 710.72 : x
  2. Step 2: Convert to fraction form
    1,176.56/1,623.12 = 710.72/x
  3. Step 3: Cross multiply
    1,176.56x = 1,623.12 × 710.72
  4. Step 4: Simplify right side
    1,176.56x = 1,153,583.85
  5. Step 5: Solve for x
    x = 1,153,583.85/1,176.56
  6. Step 6: Final answer
    x = 980.47

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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.