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Finding the Fourth Proportional to 499,291.50, 689,024.73 and 272,937

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Solution

The fourth proportional to 499,291.50, 689,024.73 and 272,937 is: 376,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,291.50 : 689,024.73 = 272,937 : x
  2. Step 2: Convert to fraction form
    499,291.50/689,024.73 = 272,937/x
  3. Step 3: Cross multiply
    499,291.50x = 689,024.73 × 272,937
  4. Step 4: Simplify right side
    499,291.50x = 188,060,342,732.01
  5. Step 5: Solve for x
    x = 188,060,342,732.01/499,291.50
  6. Step 6: Final answer
    x = 376,654.40

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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.