Home / 1,342,428.80-2,014,744.80-1,331,931.20

Finding the Fourth Proportional to 1,342,428.80, 2,014,744.80 and 1,331,931.20

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Solution

The fourth proportional to 1,342,428.80, 2,014,744.80 and 1,331,931.20 is: 1,998,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,428.80 : 2,014,744.80 = 1,331,931.20 : x
  2. Step 2: Convert to fraction form
    1,342,428.80/2,014,744.80 = 1,331,931.20/x
  3. Step 3: Cross multiply
    1,342,428.80x = 2,014,744.80 × 1,331,931.20
  4. Step 4: Simplify right side
    1,342,428.80x = 2,683,501,459,157.76
  5. Step 5: Solve for x
    x = 2,683,501,459,157.76/1,342,428.80
  6. Step 6: Final answer
    x = 1,998,989.79

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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.