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Finding the Fourth Proportional to 523,829.80, 784,578.30 and 453,845.80

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Solution

The fourth proportional to 523,829.80, 784,578.30 and 453,845.80 is: 679,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,829.80 : 784,578.30 = 453,845.80 : x
  2. Step 2: Convert to fraction form
    523,829.80/784,578.30 = 453,845.80/x
  3. Step 3: Cross multiply
    523,829.80x = 784,578.30 × 453,845.80
  4. Step 4: Simplify right side
    523,829.80x = 356,077,566,226.14
  5. Step 5: Solve for x
    x = 356,077,566,226.14/523,829.80
  6. Step 6: Final answer
    x = 679,758.13

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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.