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Finding the Fourth Proportional to 572.76, 790.23 and 324.06

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Solution

The fourth proportional to 572.76, 790.23 and 324.06 is: 447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.76 : 790.23 = 324.06 : x
  2. Step 2: Convert to fraction form
    572.76/790.23 = 324.06/x
  3. Step 3: Cross multiply
    572.76x = 790.23 × 324.06
  4. Step 4: Simplify right side
    572.76x = 256,081.93
  5. Step 5: Solve for x
    x = 256,081.93/572.76
  6. Step 6: Final answer
    x = 447.10

Related Problems

Find fourth proportional to 286.38, 395.12 and 162.03
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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.