Home / 447,572.80-617,664.07-316,984.41

Finding the Fourth Proportional to 447,572.80, 617,664.07 and 316,984.41

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Solution

The fourth proportional to 447,572.80, 617,664.07 and 316,984.41 is: 437,448.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,572.80 : 617,664.07 = 316,984.41 : x
  2. Step 2: Convert to fraction form
    447,572.80/617,664.07 = 316,984.41/x
  3. Step 3: Cross multiply
    447,572.80x = 617,664.07 × 316,984.41
  4. Step 4: Simplify right side
    447,572.80x = 195,789,880,055.45
  5. Step 5: Solve for x
    x = 195,789,880,055.45/447,572.80
  6. Step 6: Final answer
    x = 437,448.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.