Home / 828,140.52-1,142,874.46-465,678.48

Finding the Fourth Proportional to 828,140.52, 1,142,874.46 and 465,678.48

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Solution

The fourth proportional to 828,140.52, 1,142,874.46 and 465,678.48 is: 642,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,140.52 : 1,142,874.46 = 465,678.48 : x
  2. Step 2: Convert to fraction form
    828,140.52/1,142,874.46 = 465,678.48/x
  3. Step 3: Cross multiply
    828,140.52x = 1,142,874.46 × 465,678.48
  4. Step 4: Simplify right side
    828,140.52x = 532,212,041,363.62
  5. Step 5: Solve for x
    x = 532,212,041,363.62/828,140.52
  6. Step 6: Final answer
    x = 642,659.10

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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.