Home / 1,298,320.48-1,947,299.28-445,378.20

Finding the Fourth Proportional to 1,298,320.48, 1,947,299.28 and 445,378.20

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Solution

The fourth proportional to 1,298,320.48, 1,947,299.28 and 445,378.20 is: 668,005.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,320.48 : 1,947,299.28 = 445,378.20 : x
  2. Step 2: Convert to fraction form
    1,298,320.48/1,947,299.28 = 445,378.20/x
  3. Step 3: Cross multiply
    1,298,320.48x = 1,947,299.28 × 445,378.20
  4. Step 4: Simplify right side
    1,298,320.48x = 867,284,648,187.70
  5. Step 5: Solve for x
    x = 867,284,648,187.70/1,298,320.48
  6. Step 6: Final answer
    x = 668,005.06

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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.