Home / 628,551.31-867,384.16-342,065.25

Finding the Fourth Proportional to 628,551.31, 867,384.16 and 342,065.25

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Solution

The fourth proportional to 628,551.31, 867,384.16 and 342,065.25 is: 472,040.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,551.31 : 867,384.16 = 342,065.25 : x
  2. Step 2: Convert to fraction form
    628,551.31/867,384.16 = 342,065.25/x
  3. Step 3: Cross multiply
    628,551.31x = 867,384.16 × 342,065.25
  4. Step 4: Simplify right side
    628,551.31x = 296,701,979,536.44
  5. Step 5: Solve for x
    x = 296,701,979,536.44/628,551.31
  6. Step 6: Final answer
    x = 472,040.99

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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.