Home / 628,705.77-867,633.53-342,244.95

Finding the Fourth Proportional to 628,705.77, 867,633.53 and 342,244.95

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Solution

The fourth proportional to 628,705.77, 867,633.53 and 342,244.95 is: 472,308.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,705.77 : 867,633.53 = 342,244.95 : x
  2. Step 2: Convert to fraction form
    628,705.77/867,633.53 = 342,244.95/x
  3. Step 3: Cross multiply
    628,705.77x = 867,633.53 × 342,244.95
  4. Step 4: Simplify right side
    628,705.77x = 296,943,194,093.17
  5. Step 5: Solve for x
    x = 296,943,194,093.17/628,705.77
  6. Step 6: Final answer
    x = 472,308.68

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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.