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Finding the Fourth Proportional to 418,492.32, 577,512.60 and 227,510.48

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Solution

The fourth proportional to 418,492.32, 577,512.60 and 227,510.48 is: 313,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,492.32 : 577,512.60 = 227,510.48 : x
  2. Step 2: Convert to fraction form
    418,492.32/577,512.60 = 227,510.48/x
  3. Step 3: Cross multiply
    418,492.32x = 577,512.60 × 227,510.48
  4. Step 4: Simplify right side
    418,492.32x = 131,390,168,832.05
  5. Step 5: Solve for x
    x = 131,390,168,832.05/418,492.32
  6. Step 6: Final answer
    x = 313,960.76

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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.