Home / 447,428.48-617,464.30-243,492.56

Finding the Fourth Proportional to 447,428.48, 617,464.30 and 243,492.56

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Solution

The fourth proportional to 447,428.48, 617,464.30 and 243,492.56 is: 336,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,428.48 : 617,464.30 = 243,492.56 : x
  2. Step 2: Convert to fraction form
    447,428.48/617,464.30 = 243,492.56/x
  3. Step 3: Cross multiply
    447,428.48x = 617,464.30 × 243,492.56
  4. Step 4: Simplify right side
    447,428.48x = 150,347,963,115.61
  5. Step 5: Solve for x
    x = 150,347,963,115.61/447,428.48
  6. Step 6: Final answer
    x = 336,026.81

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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.