Home / 617,621.80-926,293.24-313,708.16

Finding the Fourth Proportional to 617,621.80, 926,293.24 and 313,708.16

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Solution

The fourth proportional to 617,621.80, 926,293.24 and 313,708.16 is: 470,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,621.80 : 926,293.24 = 313,708.16 : x
  2. Step 2: Convert to fraction form
    617,621.80/926,293.24 = 313,708.16/x
  3. Step 3: Cross multiply
    617,621.80x = 926,293.24 × 313,708.16
  4. Step 4: Simplify right side
    617,621.80x = 290,585,747,940.84
  5. Step 5: Solve for x
    x = 290,585,747,940.84/617,621.80
  6. Step 6: Final answer
    x = 470,491.40

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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.