Home / 1,478,363.40-2,040,137.65-824,982.56

Finding the Fourth Proportional to 1,478,363.40, 2,040,137.65 and 824,982.56

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Solution

The fourth proportional to 1,478,363.40, 2,040,137.65 and 824,982.56 is: 1,138,473.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,363.40 : 2,040,137.65 = 824,982.56 : x
  2. Step 2: Convert to fraction form
    1,478,363.40/2,040,137.65 = 824,982.56/x
  3. Step 3: Cross multiply
    1,478,363.40x = 2,040,137.65 × 824,982.56
  4. Step 4: Simplify right side
    1,478,363.40x = 1,683,077,977,124.47
  5. Step 5: Solve for x
    x = 1,683,077,977,124.47/1,478,363.40
  6. Step 6: Final answer
    x = 1,138,473.79

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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.