Home / 628,346.84-867,140.24-341,877.78

Finding the Fourth Proportional to 628,346.84, 867,140.24 and 341,877.78

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Solution

The fourth proportional to 628,346.84, 867,140.24 and 341,877.78 is: 471,803.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,346.84 : 867,140.24 = 341,877.78 : x
  2. Step 2: Convert to fraction form
    628,346.84/867,140.24 = 341,877.78/x
  3. Step 3: Cross multiply
    628,346.84x = 867,140.24 × 341,877.78
  4. Step 4: Simplify right side
    628,346.84x = 296,455,978,490.48
  5. Step 5: Solve for x
    x = 296,455,978,490.48/628,346.84
  6. Step 6: Final answer
    x = 471,803.09

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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.