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Finding the Fourth Proportional to 464,263.30, 640,447.54 and 303,212.62

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Solution

The fourth proportional to 464,263.30, 640,447.54 and 303,212.62 is: 418,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,263.30 : 640,447.54 = 303,212.62 : x
  2. Step 2: Convert to fraction form
    464,263.30/640,447.54 = 303,212.62/x
  3. Step 3: Cross multiply
    464,263.30x = 640,447.54 × 303,212.62
  4. Step 4: Simplify right side
    464,263.30x = 194,191,776,575.96
  5. Step 5: Solve for x
    x = 194,191,776,575.96/464,263.30
  6. Step 6: Final answer
    x = 418,279.40

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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.