Home / 820,364.79-1,131,648.50-480,767.43

Finding the Fourth Proportional to 820,364.79, 1,131,648.50 and 480,767.43

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Solution

The fourth proportional to 820,364.79, 1,131,648.50 and 480,767.43 is: 663,192.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,364.79 : 1,131,648.50 = 480,767.43 : x
  2. Step 2: Convert to fraction form
    820,364.79/1,131,648.50 = 480,767.43/x
  3. Step 3: Cross multiply
    820,364.79x = 1,131,648.50 × 480,767.43
  4. Step 4: Simplify right side
    820,364.79x = 544,059,746,453.96
  5. Step 5: Solve for x
    x = 544,059,746,453.96/820,364.79
  6. Step 6: Final answer
    x = 663,192.46

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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.