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Finding the Fourth Proportional to 631,925.94, 872,063.59 and 359,989.80

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Solution

The fourth proportional to 631,925.94, 872,063.59 and 359,989.80 is: 496,789.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,925.94 : 872,063.59 = 359,989.80 : x
  2. Step 2: Convert to fraction form
    631,925.94/872,063.59 = 359,989.80/x
  3. Step 3: Cross multiply
    631,925.94x = 872,063.59 × 359,989.80
  4. Step 4: Simplify right side
    631,925.94x = 313,933,997,351.38
  5. Step 5: Solve for x
    x = 313,933,997,351.38/631,925.94
  6. Step 6: Final answer
    x = 496,789.22

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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.