Home / 831,679.20-1,147,699.80-492,256.80

Finding the Fourth Proportional to 831,679.20, 1,147,699.80 and 492,256.80

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Solution

The fourth proportional to 831,679.20, 1,147,699.80 and 492,256.80 is: 679,304.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,679.20 : 1,147,699.80 = 492,256.80 : x
  2. Step 2: Convert to fraction form
    831,679.20/1,147,699.80 = 492,256.80/x
  3. Step 3: Cross multiply
    831,679.20x = 1,147,699.80 × 492,256.80
  4. Step 4: Simplify right side
    831,679.20x = 564,963,030,908.64
  5. Step 5: Solve for x
    x = 564,963,030,908.64/831,679.20
  6. Step 6: Final answer
    x = 679,304.03

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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.