Home / 1,419,141.60-2,128,056.30-620,011.80

Finding the Fourth Proportional to 1,419,141.60, 2,128,056.30 and 620,011.80

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Solution

The fourth proportional to 1,419,141.60, 2,128,056.30 and 620,011.80 is: 929,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,141.60 : 2,128,056.30 = 620,011.80 : x
  2. Step 2: Convert to fraction form
    1,419,141.60/2,128,056.30 = 620,011.80/x
  3. Step 3: Cross multiply
    1,419,141.60x = 2,128,056.30 × 620,011.80
  4. Step 4: Simplify right side
    1,419,141.60x = 1,319,420,017,064.34
  5. Step 5: Solve for x
    x = 1,319,420,017,064.34/1,419,141.60
  6. Step 6: Final answer
    x = 929,731.06

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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.