Home / 926,867.10-1,390,300.65-827,139.90

Finding the Fourth Proportional to 926,867.10, 1,390,300.65 and 827,139.90

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Solution

The fourth proportional to 926,867.10, 1,390,300.65 and 827,139.90 is: 1,240,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,867.10 : 1,390,300.65 = 827,139.90 : x
  2. Step 2: Convert to fraction form
    926,867.10/1,390,300.65 = 827,139.90/x
  3. Step 3: Cross multiply
    926,867.10x = 1,390,300.65 × 827,139.90
  4. Step 4: Simplify right side
    926,867.10x = 1,149,973,140,610.94
  5. Step 5: Solve for x
    x = 1,149,973,140,610.94/926,867.10
  6. Step 6: Final answer
    x = 1,240,709.85

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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.