Home / 628,737.27-867,657.54-342,259.53

Finding the Fourth Proportional to 628,737.27, 867,657.54 and 342,259.53

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Solution

The fourth proportional to 628,737.27, 867,657.54 and 342,259.53 is: 472,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,737.27 : 867,657.54 = 342,259.53 : x
  2. Step 2: Convert to fraction form
    628,737.27/867,657.54 = 342,259.53/x
  3. Step 3: Cross multiply
    628,737.27x = 867,657.54 × 342,259.53
  4. Step 4: Simplify right side
    628,737.27x = 296,964,061,841.36
  5. Step 5: Solve for x
    x = 296,964,061,841.36/628,737.27
  6. Step 6: Final answer
    x = 472,318.21

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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.