Home / 820,296.72-1,132,005.78-457,699.41

Finding the Fourth Proportional to 820,296.72, 1,132,005.78 and 457,699.41

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Solution

The fourth proportional to 820,296.72, 1,132,005.78 and 457,699.41 is: 631,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,296.72 : 1,132,005.78 = 457,699.41 : x
  2. Step 2: Convert to fraction form
    820,296.72/1,132,005.78 = 457,699.41/x
  3. Step 3: Cross multiply
    820,296.72x = 1,132,005.78 × 457,699.41
  4. Step 4: Simplify right side
    820,296.72x = 518,118,377,622.59
  5. Step 5: Solve for x
    x = 518,118,377,622.59/820,296.72
  6. Step 6: Final answer
    x = 631,623.12

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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.