Home / 831,331.94-1,147,250.85-487,085.49

Finding the Fourth Proportional to 831,331.94, 1,147,250.85 and 487,085.49

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Solution

The fourth proportional to 831,331.94, 1,147,250.85 and 487,085.49 is: 672,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,331.94 : 1,147,250.85 = 487,085.49 : x
  2. Step 2: Convert to fraction form
    831,331.94/1,147,250.85 = 487,085.49/x
  3. Step 3: Cross multiply
    831,331.94x = 1,147,250.85 × 487,085.49
  4. Step 4: Simplify right side
    831,331.94x = 558,809,236,296.41
  5. Step 5: Solve for x
    x = 558,809,236,296.41/831,331.94
  6. Step 6: Final answer
    x = 672,185.45

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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.