Home / 828,021.42-1,142,541.45-465,377.94

Finding the Fourth Proportional to 828,021.42, 1,142,541.45 and 465,377.94

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Solution

The fourth proportional to 828,021.42, 1,142,541.45 and 465,377.94 is: 642,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,021.42 : 1,142,541.45 = 465,377.94 : x
  2. Step 2: Convert to fraction form
    828,021.42/1,142,541.45 = 465,377.94/x
  3. Step 3: Cross multiply
    828,021.42x = 1,142,541.45 × 465,377.94
  4. Step 4: Simplify right side
    828,021.42x = 531,713,586,365.61
  5. Step 5: Solve for x
    x = 531,713,586,365.61/828,021.42
  6. Step 6: Final answer
    x = 642,149.55

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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.