Home / 828,207.36-1,143,004.32-465,721.92

Finding the Fourth Proportional to 828,207.36, 1,143,004.32 and 465,721.92

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Solution

The fourth proportional to 828,207.36, 1,143,004.32 and 465,721.92 is: 642,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,207.36 : 1,143,004.32 = 465,721.92 : x
  2. Step 2: Convert to fraction form
    828,207.36/1,143,004.32 = 465,721.92/x
  3. Step 3: Cross multiply
    828,207.36x = 1,143,004.32 × 465,721.92
  4. Step 4: Simplify right side
    828,207.36x = 532,322,166,478.69
  5. Step 5: Solve for x
    x = 532,322,166,478.69/828,207.36
  6. Step 6: Final answer
    x = 642,740.20

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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.