Home / 1,299,430.68-1,949,329.22-400,945.47

Finding the Fourth Proportional to 1,299,430.68, 1,949,329.22 and 400,945.47

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Solution

The fourth proportional to 1,299,430.68, 1,949,329.22 and 400,945.47 is: 601,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,430.68 : 1,949,329.22 = 400,945.47 : x
  2. Step 2: Convert to fraction form
    1,299,430.68/1,949,329.22 = 400,945.47/x
  3. Step 3: Cross multiply
    1,299,430.68x = 1,949,329.22 × 400,945.47
  4. Step 4: Simplify right side
    1,299,430.68x = 781,574,718,292.91
  5. Step 5: Solve for x
    x = 781,574,718,292.91/1,299,430.68
  6. Step 6: Final answer
    x = 601,474.73

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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.