Home / 628,627.29-867,505.58-342,149.46

Finding the Fourth Proportional to 628,627.29, 867,505.58 and 342,149.46

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Solution

The fourth proportional to 628,627.29, 867,505.58 and 342,149.46 is: 472,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,627.29 : 867,505.58 = 342,149.46 : x
  2. Step 2: Convert to fraction form
    628,627.29/867,505.58 = 342,149.46/x
  3. Step 3: Cross multiply
    628,627.29x = 867,505.58 × 342,149.46
  4. Step 4: Simplify right side
    628,627.29x = 296,816,559,695.71
  5. Step 5: Solve for x
    x = 296,816,559,695.71/628,627.29
  6. Step 6: Final answer
    x = 472,166.21

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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.