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Finding the Fourth Proportional to 628,737.24, 867,657.48 and 342,259.47

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Solution

The fourth proportional to 628,737.24, 867,657.48 and 342,259.47 is: 472,318.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,737.24 : 867,657.48 = 342,259.47 : x
  2. Step 2: Convert to fraction form
    628,737.24/867,657.48 = 342,259.47/x
  3. Step 3: Cross multiply
    628,737.24x = 867,657.48 × 342,259.47
  4. Step 4: Simplify right side
    628,737.24x = 296,963,989,246.34
  5. Step 5: Solve for x
    x = 296,963,989,246.34/628,737.24
  6. Step 6: Final answer
    x = 472,318.12

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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.