Home / 1,107,320.20-1,660,980.30-930,173.20

Finding the Fourth Proportional to 1,107,320.20, 1,660,980.30 and 930,173.20

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Solution

The fourth proportional to 1,107,320.20, 1,660,980.30 and 930,173.20 is: 1,395,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,320.20 : 1,660,980.30 = 930,173.20 : x
  2. Step 2: Convert to fraction form
    1,107,320.20/1,660,980.30 = 930,173.20/x
  3. Step 3: Cross multiply
    1,107,320.20x = 1,660,980.30 × 930,173.20
  4. Step 4: Simplify right side
    1,107,320.20x = 1,544,999,360,787.96
  5. Step 5: Solve for x
    x = 1,544,999,360,787.96/1,107,320.20
  6. Step 6: Final answer
    x = 1,395,259.80

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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.