Home / 1,148,891.55-1,723,346.70-390,905.28

Finding the Fourth Proportional to 1,148,891.55, 1,723,346.70 and 390,905.28

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Solution

The fourth proportional to 1,148,891.55, 1,723,346.70 and 390,905.28 is: 586,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,891.55 : 1,723,346.70 = 390,905.28 : x
  2. Step 2: Convert to fraction form
    1,148,891.55/1,723,346.70 = 390,905.28/x
  3. Step 3: Cross multiply
    1,148,891.55x = 1,723,346.70 × 390,905.28
  4. Step 4: Simplify right side
    1,148,891.55x = 673,665,324,300.58
  5. Step 5: Solve for x
    x = 673,665,324,300.58/1,148,891.55
  6. Step 6: Final answer
    x = 586,361.11

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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.