Home / 628,501.70-867,340.41-342,029.54

Finding the Fourth Proportional to 628,501.70, 867,340.41 and 342,029.54

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Solution

The fourth proportional to 628,501.70, 867,340.41 and 342,029.54 is: 472,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,501.70 : 867,340.41 = 342,029.54 : x
  2. Step 2: Convert to fraction form
    628,501.70/867,340.41 = 342,029.54/x
  3. Step 3: Cross multiply
    628,501.70x = 867,340.41 × 342,029.54
  4. Step 4: Simplify right side
    628,501.70x = 296,656,041,455.71
  5. Step 5: Solve for x
    x = 296,656,041,455.71/628,501.70
  6. Step 6: Final answer
    x = 472,005.15

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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.