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Finding the Fourth Proportional to 402,523.40, 603,785.10 and 362,433.80

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Solution

The fourth proportional to 402,523.40, 603,785.10 and 362,433.80 is: 543,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,523.40 : 603,785.10 = 362,433.80 : x
  2. Step 2: Convert to fraction form
    402,523.40/603,785.10 = 362,433.80/x
  3. Step 3: Cross multiply
    402,523.40x = 603,785.10 × 362,433.80
  4. Step 4: Simplify right side
    402,523.40x = 218,832,128,176.38
  5. Step 5: Solve for x
    x = 218,832,128,176.38/402,523.40
  6. Step 6: Final answer
    x = 543,650.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.