Home / 920,833.18-1,270,749.78-538,859.96

Finding the Fourth Proportional to 920,833.18, 1,270,749.78 and 538,859.96

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Solution

The fourth proportional to 920,833.18, 1,270,749.78 and 538,859.96 is: 743,626.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,833.18 : 1,270,749.78 = 538,859.96 : x
  2. Step 2: Convert to fraction form
    920,833.18/1,270,749.78 = 538,859.96/x
  3. Step 3: Cross multiply
    920,833.18x = 1,270,749.78 × 538,859.96
  4. Step 4: Simplify right side
    920,833.18x = 684,756,174,032.37
  5. Step 5: Solve for x
    x = 684,756,174,032.37/920,833.18
  6. Step 6: Final answer
    x = 743,626.74

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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.