Home / 1,420,301.32-1,959,985.44-775,724.04

Finding the Fourth Proportional to 1,420,301.32, 1,959,985.44 and 775,724.04

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Solution

The fourth proportional to 1,420,301.32, 1,959,985.44 and 775,724.04 is: 1,070,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,301.32 : 1,959,985.44 = 775,724.04 : x
  2. Step 2: Convert to fraction form
    1,420,301.32/1,959,985.44 = 775,724.04/x
  3. Step 3: Cross multiply
    1,420,301.32x = 1,959,985.44 × 775,724.04
  4. Step 4: Simplify right side
    1,420,301.32x = 1,520,407,823,857.98
  5. Step 5: Solve for x
    x = 1,520,407,823,857.98/1,420,301.32
  6. Step 6: Final answer
    x = 1,070,482.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.