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Finding the Fourth Proportional to 478,759.08, 660,502.15 and 274,736.28

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Solution

The fourth proportional to 478,759.08, 660,502.15 and 274,736.28 is: 379,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,759.08 : 660,502.15 = 274,736.28 : x
  2. Step 2: Convert to fraction form
    478,759.08/660,502.15 = 274,736.28/x
  3. Step 3: Cross multiply
    478,759.08x = 660,502.15 × 274,736.28
  4. Step 4: Simplify right side
    478,759.08x = 181,463,903,623.00
  5. Step 5: Solve for x
    x = 181,463,903,623.00/478,759.08
  6. Step 6: Final answer
    x = 379,029.69

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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.