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Finding the Fourth Proportional to 499,043, 688,696.36 and 272,703.08

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Solution

The fourth proportional to 499,043, 688,696.36 and 272,703.08 is: 376,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,043 : 688,696.36 = 272,703.08 : x
  2. Step 2: Convert to fraction form
    499,043/688,696.36 = 272,703.08/x
  3. Step 3: Cross multiply
    499,043x = 688,696.36 × 272,703.08
  4. Step 4: Simplify right side
    499,043x = 187,809,618,556.79
  5. Step 5: Solve for x
    x = 187,809,618,556.79/499,043
  6. Step 6: Final answer
    x = 376,339.55

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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.