Home / 1,298,227.31-1,947,401.10-399,709.29

Finding the Fourth Proportional to 1,298,227.31, 1,947,401.10 and 399,709.29

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Solution

The fourth proportional to 1,298,227.31, 1,947,401.10 and 399,709.29 is: 599,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,227.31 : 1,947,401.10 = 399,709.29 : x
  2. Step 2: Convert to fraction form
    1,298,227.31/1,947,401.10 = 399,709.29/x
  3. Step 3: Cross multiply
    1,298,227.31x = 1,947,401.10 × 399,709.29
  4. Step 4: Simplify right side
    1,298,227.31x = 778,394,311,026.22
  5. Step 5: Solve for x
    x = 778,394,311,026.22/1,298,227.31
  6. Step 6: Final answer
    x = 599,582.45

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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.