Home / 730,664.82-1,008,285.75-399,514.70

Finding the Fourth Proportional to 730,664.82, 1,008,285.75 and 399,514.70

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Solution

The fourth proportional to 730,664.82, 1,008,285.75 and 399,514.70 is: 551,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,664.82 : 1,008,285.75 = 399,514.70 : x
  2. Step 2: Convert to fraction form
    730,664.82/1,008,285.75 = 399,514.70/x
  3. Step 3: Cross multiply
    730,664.82x = 1,008,285.75 × 399,514.70
  4. Step 4: Simplify right side
    730,664.82x = 402,824,981,446.24
  5. Step 5: Solve for x
    x = 402,824,981,446.24/730,664.82
  6. Step 6: Final answer
    x = 551,312.96

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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.