Home / 688,138.16-1,032,328.28-314,198.96

Finding the Fourth Proportional to 688,138.16, 1,032,328.28 and 314,198.96

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Solution

The fourth proportional to 688,138.16, 1,032,328.28 and 314,198.96 is: 471,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,138.16 : 1,032,328.28 = 314,198.96 : x
  2. Step 2: Convert to fraction form
    688,138.16/1,032,328.28 = 314,198.96/x
  3. Step 3: Cross multiply
    688,138.16x = 1,032,328.28 × 314,198.96
  4. Step 4: Simplify right side
    688,138.16x = 324,356,471,954.59
  5. Step 5: Solve for x
    x = 324,356,471,954.59/688,138.16
  6. Step 6: Final answer
    x = 471,353.71

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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.