Home / 628,872.20-867,922.02-357,028.10

Finding the Fourth Proportional to 628,872.20, 867,922.02 and 357,028.10

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Solution

The fourth proportional to 628,872.20, 867,922.02 and 357,028.10 is: 492,743.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,872.20 : 867,922.02 = 357,028.10 : x
  2. Step 2: Convert to fraction form
    628,872.20/867,922.02 = 357,028.10/x
  3. Step 3: Cross multiply
    628,872.20x = 867,922.02 × 357,028.10
  4. Step 4: Simplify right side
    628,872.20x = 309,872,545,409.15
  5. Step 5: Solve for x
    x = 309,872,545,409.15/628,872.20
  6. Step 6: Final answer
    x = 492,743.28

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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.