Home / 1,432,742.43-1,977,235.83-821,013.32

Finding the Fourth Proportional to 1,432,742.43, 1,977,235.83 and 821,013.32

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Solution

The fourth proportional to 1,432,742.43, 1,977,235.83 and 821,013.32 is: 1,133,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,742.43 : 1,977,235.83 = 821,013.32 : x
  2. Step 2: Convert to fraction form
    1,432,742.43/1,977,235.83 = 821,013.32/x
  3. Step 3: Cross multiply
    1,432,742.43x = 1,977,235.83 × 821,013.32
  4. Step 4: Simplify right side
    1,432,742.43x = 1,623,336,948,186.90
  5. Step 5: Solve for x
    x = 1,623,336,948,186.90/1,432,742.43
  6. Step 6: Final answer
    x = 1,133,027.76

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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.