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Finding the Fourth Proportional to 507,366.05, 699,899.70 and 313,711.86

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Solution

The fourth proportional to 507,366.05, 699,899.70 and 313,711.86 is: 432,758.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,366.05 : 699,899.70 = 313,711.86 : x
  2. Step 2: Convert to fraction form
    507,366.05/699,899.70 = 313,711.86/x
  3. Step 3: Cross multiply
    507,366.05x = 699,899.70 × 313,711.86
  4. Step 4: Simplify right side
    507,366.05x = 219,566,836,700.44
  5. Step 5: Solve for x
    x = 219,566,836,700.44/507,366.05
  6. Step 6: Final answer
    x = 432,758.24

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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.