Home / 925,324-1,386,400.32-621,148.64

Finding the Fourth Proportional to 925,324, 1,386,400.32 and 621,148.64

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Solution

The fourth proportional to 925,324, 1,386,400.32 and 621,148.64 is: 930,658.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,324 : 1,386,400.32 = 621,148.64 : x
  2. Step 2: Convert to fraction form
    925,324/1,386,400.32 = 621,148.64/x
  3. Step 3: Cross multiply
    925,324x = 1,386,400.32 × 621,148.64
  4. Step 4: Simplify right side
    925,324x = 861,160,673,263.57
  5. Step 5: Solve for x
    x = 861,160,673,263.57/925,324
  6. Step 6: Final answer
    x = 930,658.53

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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.