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Finding the Fourth Proportional to 418,477.30, 577,491.86 and 227,495.50

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Solution

The fourth proportional to 418,477.30, 577,491.86 and 227,495.50 is: 313,940.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,477.30 : 577,491.86 = 227,495.50 : x
  2. Step 2: Convert to fraction form
    418,477.30/577,491.86 = 227,495.50/x
  3. Step 3: Cross multiply
    418,477.30x = 577,491.86 × 227,495.50
  4. Step 4: Simplify right side
    418,477.30x = 131,376,799,436.63
  5. Step 5: Solve for x
    x = 131,376,799,436.63/418,477.30
  6. Step 6: Final answer
    x = 313,940.09

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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.