Home / 691,253.61-1,036,505.21-311,730.29

Finding the Fourth Proportional to 691,253.61, 1,036,505.21 and 311,730.29

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Solution

The fourth proportional to 691,253.61, 1,036,505.21 and 311,730.29 is: 467,426.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,253.61 : 1,036,505.21 = 311,730.29 : x
  2. Step 2: Convert to fraction form
    691,253.61/1,036,505.21 = 311,730.29/x
  3. Step 3: Cross multiply
    691,253.61x = 1,036,505.21 × 311,730.29
  4. Step 4: Simplify right side
    691,253.61x = 323,110,068,599.01
  5. Step 5: Solve for x
    x = 323,110,068,599.01/691,253.61
  6. Step 6: Final answer
    x = 467,426.23

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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.