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Finding the Fourth Proportional to 451,632, 623,349.36 and 270,384.39

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Solution

The fourth proportional to 451,632, 623,349.36 and 270,384.39 is: 373,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,632 : 623,349.36 = 270,384.39 : x
  2. Step 2: Convert to fraction form
    451,632/623,349.36 = 270,384.39/x
  3. Step 3: Cross multiply
    451,632x = 623,349.36 × 270,384.39
  4. Step 4: Simplify right side
    451,632x = 168,543,936,460.49
  5. Step 5: Solve for x
    x = 168,543,936,460.49/451,632
  6. Step 6: Final answer
    x = 373,188.65

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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.