Home / 628,634.10-867,518.67-342,153.51

Finding the Fourth Proportional to 628,634.10, 867,518.67 and 342,153.51

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Solution

The fourth proportional to 628,634.10, 867,518.67 and 342,153.51 is: 472,173.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,634.10 : 867,518.67 = 342,153.51 : x
  2. Step 2: Convert to fraction form
    628,634.10/867,518.67 = 342,153.51/x
  3. Step 3: Cross multiply
    628,634.10x = 867,518.67 × 342,153.51
  4. Step 4: Simplify right side
    628,634.10x = 296,824,557,931.03
  5. Step 5: Solve for x
    x = 296,824,557,931.03/628,634.10
  6. Step 6: Final answer
    x = 472,173.81

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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.