Home / 828,146.52-1,142,882.74-465,684.48

Finding the Fourth Proportional to 828,146.52, 1,142,882.74 and 465,684.48

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Solution

The fourth proportional to 828,146.52, 1,142,882.74 and 465,684.48 is: 642,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,146.52 : 1,142,882.74 = 465,684.48 : x
  2. Step 2: Convert to fraction form
    828,146.52/1,142,882.74 = 465,684.48/x
  3. Step 3: Cross multiply
    828,146.52x = 1,142,882.74 × 465,684.48
  4. Step 4: Simplify right side
    828,146.52x = 532,222,754,477.88
  5. Step 5: Solve for x
    x = 532,222,754,477.88/828,146.52
  6. Step 6: Final answer
    x = 642,667.38

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Double scale
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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.