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Finding the Fourth Proportional to 524.32, 722.91 and 430.90

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Solution

The fourth proportional to 524.32, 722.91 and 430.90 is: 594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.32 : 722.91 = 430.90 : x
  2. Step 2: Convert to fraction form
    524.32/722.91 = 430.90/x
  3. Step 3: Cross multiply
    524.32x = 722.91 × 430.90
  4. Step 4: Simplify right side
    524.32x = 311,501.92
  5. Step 5: Solve for x
    x = 311,501.92/524.32
  6. Step 6: Final answer
    x = 594.11

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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.