Home / 645,111.20-967,666.80-530,949.80

Finding the Fourth Proportional to 645,111.20, 967,666.80 and 530,949.80

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Solution

The fourth proportional to 645,111.20, 967,666.80 and 530,949.80 is: 796,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,111.20 : 967,666.80 = 530,949.80 : x
  2. Step 2: Convert to fraction form
    645,111.20/967,666.80 = 530,949.80/x
  3. Step 3: Cross multiply
    645,111.20x = 967,666.80 × 530,949.80
  4. Step 4: Simplify right side
    645,111.20x = 513,782,493,926.64
  5. Step 5: Solve for x
    x = 513,782,493,926.64/645,111.20
  6. Step 6: Final answer
    x = 796,424.70

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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.