Home / 628,730.52-867,657.18-342,259.56

Finding the Fourth Proportional to 628,730.52, 867,657.18 and 342,259.56

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Solution

The fourth proportional to 628,730.52, 867,657.18 and 342,259.56 is: 472,323.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,730.52 : 867,657.18 = 342,259.56 : x
  2. Step 2: Convert to fraction form
    628,730.52/867,657.18 = 342,259.56/x
  3. Step 3: Cross multiply
    628,730.52x = 867,657.18 × 342,259.56
  4. Step 4: Simplify right side
    628,730.52x = 296,963,964,657.64
  5. Step 5: Solve for x
    x = 296,963,964,657.64/628,730.52
  6. Step 6: Final answer
    x = 472,323.13

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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.