Home / 828,208.36-1,143,005.70-465,722.92

Finding the Fourth Proportional to 828,208.36, 1,143,005.70 and 465,722.92

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Solution

The fourth proportional to 828,208.36, 1,143,005.70 and 465,722.92 is: 642,741.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,208.36 : 1,143,005.70 = 465,722.92 : x
  2. Step 2: Convert to fraction form
    828,208.36/1,143,005.70 = 465,722.92/x
  3. Step 3: Cross multiply
    828,208.36x = 1,143,005.70 × 465,722.92
  4. Step 4: Simplify right side
    828,208.36x = 532,323,952,180.64
  5. Step 5: Solve for x
    x = 532,323,952,180.64/828,208.36
  6. Step 6: Final answer
    x = 642,741.58

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1.5x scale

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.