Home / 693,869.28-1,040,094.88-393,715.76

Finding the Fourth Proportional to 693,869.28, 1,040,094.88 and 393,715.76

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Solution

The fourth proportional to 693,869.28, 1,040,094.88 and 393,715.76 is: 590,171.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,869.28 : 1,040,094.88 = 393,715.76 : x
  2. Step 2: Convert to fraction form
    693,869.28/1,040,094.88 = 393,715.76/x
  3. Step 3: Cross multiply
    693,869.28x = 1,040,094.88 × 393,715.76
  4. Step 4: Simplify right side
    693,869.28x = 409,501,746,151.31
  5. Step 5: Solve for x
    x = 409,501,746,151.31/693,869.28
  6. Step 6: Final answer
    x = 590,171.32

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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.