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Finding the Fourth Proportional to 869,053.07, 1,303,678.02 and 779,757.86

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Solution

The fourth proportional to 869,053.07, 1,303,678.02 and 779,757.86 is: 1,169,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,053.07 : 1,303,678.02 = 779,757.86 : x
  2. Step 2: Convert to fraction form
    869,053.07/1,303,678.02 = 779,757.86/x
  3. Step 3: Cross multiply
    869,053.07x = 1,303,678.02 × 779,757.86
  4. Step 4: Simplify right side
    869,053.07x = 1,016,553,183,004.24
  5. Step 5: Solve for x
    x = 1,016,553,183,004.24/869,053.07
  6. Step 6: Final answer
    x = 1,169,725.09

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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.