Home / 926,003.70-1,389,005.55-825,620.40

Finding the Fourth Proportional to 926,003.70, 1,389,005.55 and 825,620.40

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Solution

The fourth proportional to 926,003.70, 1,389,005.55 and 825,620.40 is: 1,238,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,003.70 : 1,389,005.55 = 825,620.40 : x
  2. Step 2: Convert to fraction form
    926,003.70/1,389,005.55 = 825,620.40/x
  3. Step 3: Cross multiply
    926,003.70x = 1,389,005.55 × 825,620.40
  4. Step 4: Simplify right side
    926,003.70x = 1,146,791,317,793.22
  5. Step 5: Solve for x
    x = 1,146,791,317,793.22/926,003.70
  6. Step 6: Final answer
    x = 1,238,430.60

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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.