Home / 1,631,329.72-2,443,267.28-778,998.38

Finding the Fourth Proportional to 1,631,329.72, 2,443,267.28 and 778,998.38

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Solution

The fourth proportional to 1,631,329.72, 2,443,267.28 and 778,998.38 is: 1,166,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,329.72 : 2,443,267.28 = 778,998.38 : x
  2. Step 2: Convert to fraction form
    1,631,329.72/2,443,267.28 = 778,998.38/x
  3. Step 3: Cross multiply
    1,631,329.72x = 2,443,267.28 × 778,998.38
  4. Step 4: Simplify right side
    1,631,329.72x = 1,903,301,253,027.01
  5. Step 5: Solve for x
    x = 1,903,301,253,027.01/1,631,329.72
  6. Step 6: Final answer
    x = 1,166,717.70

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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.