Home / 1,415,320.20-2,122,980.30-942,928.20

Finding the Fourth Proportional to 1,415,320.20, 2,122,980.30 and 942,928.20

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Solution

The fourth proportional to 1,415,320.20, 2,122,980.30 and 942,928.20 is: 1,414,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,320.20 : 2,122,980.30 = 942,928.20 : x
  2. Step 2: Convert to fraction form
    1,415,320.20/2,122,980.30 = 942,928.20/x
  3. Step 3: Cross multiply
    1,415,320.20x = 2,122,980.30 × 942,928.20
  4. Step 4: Simplify right side
    1,415,320.20x = 2,001,817,992,914.46
  5. Step 5: Solve for x
    x = 2,001,817,992,914.46/1,415,320.20
  6. Step 6: Final answer
    x = 1,414,392.30

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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.