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Finding the Fourth Proportional to 572.99, 790.76 and 432.86

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Solution

The fourth proportional to 572.99, 790.76 and 432.86 is: 597.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.99 : 790.76 = 432.86 : x
  2. Step 2: Convert to fraction form
    572.99/790.76 = 432.86/x
  3. Step 3: Cross multiply
    572.99x = 790.76 × 432.86
  4. Step 4: Simplify right side
    572.99x = 342,287.48
  5. Step 5: Solve for x
    x = 342,287.48/572.99
  6. Step 6: Final answer
    x = 597.37

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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.