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Finding the Fourth Proportional to 418,465.84, 577,483.28 and 227,479.24

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Solution

The fourth proportional to 418,465.84, 577,483.28 and 227,479.24 is: 313,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,465.84 : 577,483.28 = 227,479.24 : x
  2. Step 2: Convert to fraction form
    418,465.84/577,483.28 = 227,479.24/x
  3. Step 3: Cross multiply
    418,465.84x = 577,483.28 × 227,479.24
  4. Step 4: Simplify right side
    418,465.84x = 131,365,457,647.11
  5. Step 5: Solve for x
    x = 131,365,457,647.11/418,465.84
  6. Step 6: Final answer
    x = 313,921.58

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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.