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Finding the Fourth Proportional to 520,562.96, 718,099.08 and 316,676.24

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Solution

The fourth proportional to 520,562.96, 718,099.08 and 316,676.24 is: 436,844.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,562.96 : 718,099.08 = 316,676.24 : x
  2. Step 2: Convert to fraction form
    520,562.96/718,099.08 = 316,676.24/x
  3. Step 3: Cross multiply
    520,562.96x = 718,099.08 × 316,676.24
  4. Step 4: Simplify right side
    520,562.96x = 227,404,916,601.86
  5. Step 5: Solve for x
    x = 227,404,916,601.86/520,562.96
  6. Step 6: Final answer
    x = 436,844.21

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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.