Home / 1,302,938.80-1,956,157.80-831,713.20

Finding the Fourth Proportional to 1,302,938.80, 1,956,157.80 and 831,713.20

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Solution

The fourth proportional to 1,302,938.80, 1,956,157.80 and 831,713.20 is: 1,248,686.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,938.80 : 1,956,157.80 = 831,713.20 : x
  2. Step 2: Convert to fraction form
    1,302,938.80/1,956,157.80 = 831,713.20/x
  3. Step 3: Cross multiply
    1,302,938.80x = 1,956,157.80 × 831,713.20
  4. Step 4: Simplify right side
    1,302,938.80x = 1,626,962,263,542.96
  5. Step 5: Solve for x
    x = 1,626,962,263,542.96/1,302,938.80
  6. Step 6: Final answer
    x = 1,248,686.63

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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.