Home / 820,076.30-1,131,705.77-457,500.15

Finding the Fourth Proportional to 820,076.30, 1,131,705.77 and 457,500.15

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Solution

The fourth proportional to 820,076.30, 1,131,705.77 and 457,500.15 is: 631,350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,076.30 : 1,131,705.77 = 457,500.15 : x
  2. Step 2: Convert to fraction form
    820,076.30/1,131,705.77 = 457,500.15/x
  3. Step 3: Cross multiply
    820,076.30x = 1,131,705.77 × 457,500.15
  4. Step 4: Simplify right side
    820,076.30x = 517,755,559,530.87
  5. Step 5: Solve for x
    x = 517,755,559,530.87/820,076.30
  6. Step 6: Final answer
    x = 631,350.47

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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.