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Finding the Fourth Proportional to 645,263.35, 967,894.92 and 307,279.24

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Solution

The fourth proportional to 645,263.35, 967,894.92 and 307,279.24 is: 460,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,263.35 : 967,894.92 = 307,279.24 : x
  2. Step 2: Convert to fraction form
    645,263.35/967,894.92 = 307,279.24/x
  3. Step 3: Cross multiply
    645,263.35x = 967,894.92 × 307,279.24
  4. Step 4: Simplify right side
    645,263.35x = 297,414,012,997.72
  5. Step 5: Solve for x
    x = 297,414,012,997.72/645,263.35
  6. Step 6: Final answer
    x = 460,918.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.