Home / 1,246,008.70-1,869,013.05-767,711.80

Finding the Fourth Proportional to 1,246,008.70, 1,869,013.05 and 767,711.80

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Solution

The fourth proportional to 1,246,008.70, 1,869,013.05 and 767,711.80 is: 1,151,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,008.70 : 1,869,013.05 = 767,711.80 : x
  2. Step 2: Convert to fraction form
    1,246,008.70/1,869,013.05 = 767,711.80/x
  3. Step 3: Cross multiply
    1,246,008.70x = 1,869,013.05 × 767,711.80
  4. Step 4: Simplify right side
    1,246,008.70x = 1,434,863,372,838.99
  5. Step 5: Solve for x
    x = 1,434,863,372,838.99/1,246,008.70
  6. Step 6: Final answer
    x = 1,151,567.70

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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.