Home / 828,119.34-1,142,771.38-465,535.47

Finding the Fourth Proportional to 828,119.34, 1,142,771.38 and 465,535.47

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Solution

The fourth proportional to 828,119.34, 1,142,771.38 and 465,535.47 is: 642,420.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,119.34 : 1,142,771.38 = 465,535.47 : x
  2. Step 2: Convert to fraction form
    828,119.34/1,142,771.38 = 465,535.47/x
  3. Step 3: Cross multiply
    828,119.34x = 1,142,771.38 × 465,535.47
  4. Step 4: Simplify right side
    828,119.34x = 532,000,614,671.63
  5. Step 5: Solve for x
    x = 532,000,614,671.63/828,119.34
  6. Step 6: Final answer
    x = 642,420.23

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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.