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Finding the Fourth Proportional to 475,665.51, 656,502.32 and 284,678.45

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Solution

The fourth proportional to 475,665.51, 656,502.32 and 284,678.45 is: 392,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,665.51 : 656,502.32 = 284,678.45 : x
  2. Step 2: Convert to fraction form
    475,665.51/656,502.32 = 284,678.45/x
  3. Step 3: Cross multiply
    475,665.51x = 656,502.32 × 284,678.45
  4. Step 4: Simplify right side
    475,665.51x = 186,892,061,168.76
  5. Step 5: Solve for x
    x = 186,892,061,168.76/475,665.51
  6. Step 6: Final answer
    x = 392,906.48

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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.