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Finding the Fourth Proportional to 499,484.43, 689,287.41 and 270,041.76

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Solution

The fourth proportional to 499,484.43, 689,287.41 and 270,041.76 is: 372,657.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,484.43 : 689,287.41 = 270,041.76 : x
  2. Step 2: Convert to fraction form
    499,484.43/689,287.41 = 270,041.76/x
  3. Step 3: Cross multiply
    499,484.43x = 689,287.41 × 270,041.76
  4. Step 4: Simplify right side
    499,484.43x = 186,136,385,342.24
  5. Step 5: Solve for x
    x = 186,136,385,342.24/499,484.43
  6. Step 6: Final answer
    x = 372,657.03

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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.