Home / 1,041,256.80-1,561,885.20-831,304.80

Finding the Fourth Proportional to 1,041,256.80, 1,561,885.20 and 831,304.80

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Solution

The fourth proportional to 1,041,256.80, 1,561,885.20 and 831,304.80 is: 1,246,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041,256.80 : 1,561,885.20 = 831,304.80 : x
  2. Step 2: Convert to fraction form
    1,041,256.80/1,561,885.20 = 831,304.80/x
  3. Step 3: Cross multiply
    1,041,256.80x = 1,561,885.20 × 831,304.80
  4. Step 4: Simplify right side
    1,041,256.80x = 1,298,402,663,808.96
  5. Step 5: Solve for x
    x = 1,298,402,663,808.96/1,041,256.80
  6. Step 6: Final answer
    x = 1,246,957.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.