Home / 820,434.86-1,132,256.94-457,929.44

Finding the Fourth Proportional to 820,434.86, 1,132,256.94 and 457,929.44

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Solution

The fourth proportional to 820,434.86, 1,132,256.94 and 457,929.44 is: 631,974.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,434.86 : 1,132,256.94 = 457,929.44 : x
  2. Step 2: Convert to fraction form
    820,434.86/1,132,256.94 = 457,929.44/x
  3. Step 3: Cross multiply
    820,434.86x = 1,132,256.94 × 457,929.44
  4. Step 4: Simplify right side
    820,434.86x = 518,493,786,470.31
  5. Step 5: Solve for x
    x = 518,493,786,470.31/820,434.86
  6. Step 6: Final answer
    x = 631,974.35

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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.