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Finding the Fourth Proportional to 418,490.32, 577,520.40 and 227,504.08

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Solution

The fourth proportional to 418,490.32, 577,520.40 and 227,504.08 is: 313,957.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,490.32 : 577,520.40 = 227,504.08 : x
  2. Step 2: Convert to fraction form
    418,490.32/577,520.40 = 227,504.08/x
  3. Step 3: Cross multiply
    418,490.32x = 577,520.40 × 227,504.08
  4. Step 4: Simplify right side
    418,490.32x = 131,388,247,283.23
  5. Step 5: Solve for x
    x = 131,388,247,283.23/418,490.32
  6. Step 6: Final answer
    x = 313,957.67

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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.