Home / 1,420,902.28-2,129,916.98-611,814.34

Finding the Fourth Proportional to 1,420,902.28, 2,129,916.98 and 611,814.34

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Solution

The fourth proportional to 1,420,902.28, 2,129,916.98 and 611,814.34 is: 917,103.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,902.28 : 2,129,916.98 = 611,814.34 : x
  2. Step 2: Convert to fraction form
    1,420,902.28/2,129,916.98 = 611,814.34/x
  3. Step 3: Cross multiply
    1,420,902.28x = 2,129,916.98 × 611,814.34
  4. Step 4: Simplify right side
    1,420,902.28x = 1,303,113,751,373.49
  5. Step 5: Solve for x
    x = 1,303,113,751,373.49/1,420,902.28
  6. Step 6: Final answer
    x = 917,103.01

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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.