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Finding the Fourth Proportional to 579,814.80, 869,722.20 and 537,824.40

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Solution

The fourth proportional to 579,814.80, 869,722.20 and 537,824.40 is: 806,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,814.80 : 869,722.20 = 537,824.40 : x
  2. Step 2: Convert to fraction form
    579,814.80/869,722.20 = 537,824.40/x
  3. Step 3: Cross multiply
    579,814.80x = 869,722.20 × 537,824.40
  4. Step 4: Simplify right side
    579,814.80x = 467,757,820,381.68
  5. Step 5: Solve for x
    x = 467,757,820,381.68/579,814.80
  6. Step 6: Final answer
    x = 806,736.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.