Home / 820,494.48-1,132,279.92-457,914.36

Finding the Fourth Proportional to 820,494.48, 1,132,279.92 and 457,914.36

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Solution

The fourth proportional to 820,494.48, 1,132,279.92 and 457,914.36 is: 631,920.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,494.48 : 1,132,279.92 = 457,914.36 : x
  2. Step 2: Convert to fraction form
    820,494.48/1,132,279.92 = 457,914.36/x
  3. Step 3: Cross multiply
    820,494.48x = 1,132,279.92 × 457,914.36
  4. Step 4: Simplify right side
    820,494.48x = 518,487,234,907.65
  5. Step 5: Solve for x
    x = 518,487,234,907.65/820,494.48
  6. Step 6: Final answer
    x = 631,920.44

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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.