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Finding the Fourth Proportional to 551,492.32, 760,941.35 and 321,945.43

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Solution

The fourth proportional to 551,492.32, 760,941.35 and 321,945.43 is: 444,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,492.32 : 760,941.35 = 321,945.43 : x
  2. Step 2: Convert to fraction form
    551,492.32/760,941.35 = 321,945.43/x
  3. Step 3: Cross multiply
    551,492.32x = 760,941.35 × 321,945.43
  4. Step 4: Simplify right side
    551,492.32x = 244,981,587,732.69
  5. Step 5: Solve for x
    x = 244,981,587,732.69/551,492.32
  6. Step 6: Final answer
    x = 444,215.77

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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.