Home / 1,006,939.96-1,388,869.68-662,666.20

Finding the Fourth Proportional to 1,006,939.96, 1,388,869.68 and 662,666.20

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Solution

The fourth proportional to 1,006,939.96, 1,388,869.68 and 662,666.20 is: 914,013.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,939.96 : 1,388,869.68 = 662,666.20 : x
  2. Step 2: Convert to fraction form
    1,006,939.96/1,388,869.68 = 662,666.20/x
  3. Step 3: Cross multiply
    1,006,939.96x = 1,388,869.68 × 662,666.20
  4. Step 4: Simplify right side
    1,006,939.96x = 920,356,993,140.82
  5. Step 5: Solve for x
    x = 920,356,993,140.82/1,006,939.96
  6. Step 6: Final answer
    x = 914,013.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.