Home / 556,728.28-834,347.94-289,928.68

Finding the Fourth Proportional to 556,728.28, 834,347.94 and 289,928.68

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Solution

The fourth proportional to 556,728.28, 834,347.94 and 289,928.68 is: 434,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,728.28 : 834,347.94 = 289,928.68 : x
  2. Step 2: Convert to fraction form
    556,728.28/834,347.94 = 289,928.68/x
  3. Step 3: Cross multiply
    556,728.28x = 834,347.94 × 289,928.68
  4. Step 4: Simplify right side
    556,728.28x = 241,901,396,904.92
  5. Step 5: Solve for x
    x = 241,901,396,904.92/556,728.28
  6. Step 6: Final answer
    x = 434,505.32

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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.