Home / 2,928,429.36-4,391,614.84-878,478.64

Finding the Fourth Proportional to 2,928,429.36, 4,391,614.84 and 878,478.64

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Solution

The fourth proportional to 2,928,429.36, 4,391,614.84 and 878,478.64 is: 1,317,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,429.36 : 4,391,614.84 = 878,478.64 : x
  2. Step 2: Convert to fraction form
    2,928,429.36/4,391,614.84 = 878,478.64/x
  3. Step 3: Cross multiply
    2,928,429.36x = 4,391,614.84 × 878,478.64
  4. Step 4: Simplify right side
    2,928,429.36x = 3,857,939,832,047.02
  5. Step 5: Solve for x
    x = 3,857,939,832,047.02/2,928,429.36
  6. Step 6: Final answer
    x = 1,317,409.22

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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.