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Finding the Fourth Proportional to 631,019.04, 870,818.40 and 344,550.48

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Solution

The fourth proportional to 631,019.04, 870,818.40 and 344,550.48 is: 475,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,019.04 : 870,818.40 = 344,550.48 : x
  2. Step 2: Convert to fraction form
    631,019.04/870,818.40 = 344,550.48/x
  3. Step 3: Cross multiply
    631,019.04x = 870,818.40 × 344,550.48
  4. Step 4: Simplify right side
    631,019.04x = 300,040,897,712.83
  5. Step 5: Solve for x
    x = 300,040,897,712.83/631,019.04
  6. Step 6: Final answer
    x = 475,486.28

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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.