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Finding the Fourth Proportional to 472,946.60, 652,441.50 and 279,224.57

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Solution

The fourth proportional to 472,946.60, 652,441.50 and 279,224.57 is: 385,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,946.60 : 652,441.50 = 279,224.57 : x
  2. Step 2: Convert to fraction form
    472,946.60/652,441.50 = 279,224.57/x
  3. Step 3: Cross multiply
    472,946.60x = 652,441.50 × 279,224.57
  4. Step 4: Simplify right side
    472,946.60x = 182,177,698,918.76
  5. Step 5: Solve for x
    x = 182,177,698,918.76/472,946.60
  6. Step 6: Final answer
    x = 385,197.18

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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.