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Finding the Fourth Proportional to 520.04, 715.84 and 436.24

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Solution

The fourth proportional to 520.04, 715.84 and 436.24 is: 600.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.04 : 715.84 = 436.24 : x
  2. Step 2: Convert to fraction form
    520.04/715.84 = 436.24/x
  3. Step 3: Cross multiply
    520.04x = 715.84 × 436.24
  4. Step 4: Simplify right side
    520.04x = 312,278.04
  5. Step 5: Solve for x
    x = 312,278.04/520.04
  6. Step 6: Final answer
    x = 600.49

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Double scale
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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.