Home / 447,212.28-617,428.62-307,751.16

Finding the Fourth Proportional to 447,212.28, 617,428.62 and 307,751.16

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Solution

The fourth proportional to 447,212.28, 617,428.62 and 307,751.16 is: 424,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,212.28 : 617,428.62 = 307,751.16 : x
  2. Step 2: Convert to fraction form
    447,212.28/617,428.62 = 307,751.16/x
  3. Step 3: Cross multiply
    447,212.28x = 617,428.62 × 307,751.16
  4. Step 4: Simplify right side
    447,212.28x = 190,014,374,022.20
  5. Step 5: Solve for x
    x = 190,014,374,022.20/447,212.28
  6. Step 6: Final answer
    x = 424,886.31

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1.5x scale

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.