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Finding the Fourth Proportional to 631,009.68, 870,792.86 and 344,529.75

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Solution

The fourth proportional to 631,009.68, 870,792.86 and 344,529.75 is: 475,450.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,009.68 : 870,792.86 = 344,529.75 : x
  2. Step 2: Convert to fraction form
    631,009.68/870,792.86 = 344,529.75/x
  3. Step 3: Cross multiply
    631,009.68x = 870,792.86 × 344,529.75
  4. Step 4: Simplify right side
    631,009.68x = 300,014,050,484.38
  5. Step 5: Solve for x
    x = 300,014,050,484.38/631,009.68
  6. Step 6: Final answer
    x = 475,450.79

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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.