Home / 926,999.20-1,390,652.40-394,775.20

Finding the Fourth Proportional to 926,999.20, 1,390,652.40 and 394,775.20

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Solution

The fourth proportional to 926,999.20, 1,390,652.40 and 394,775.20 is: 592,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,999.20 : 1,390,652.40 = 394,775.20 : x
  2. Step 2: Convert to fraction form
    926,999.20/1,390,652.40 = 394,775.20/x
  3. Step 3: Cross multiply
    926,999.20x = 1,390,652.40 × 394,775.20
  4. Step 4: Simplify right side
    926,999.20x = 548,995,079,340.48
  5. Step 5: Solve for x
    x = 548,995,079,340.48/926,999.20
  6. Step 6: Final answer
    x = 592,228.21

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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.