Home / 628,965.59-867,982.88-342,491.27

Finding the Fourth Proportional to 628,965.59, 867,982.88 and 342,491.27

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Solution

The fourth proportional to 628,965.59, 867,982.88 and 342,491.27 is: 472,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,965.59 : 867,982.88 = 342,491.27 : x
  2. Step 2: Convert to fraction form
    628,965.59/867,982.88 = 342,491.27/x
  3. Step 3: Cross multiply
    628,965.59x = 867,982.88 × 342,491.27
  4. Step 4: Simplify right side
    628,965.59x = 297,276,556,739.50
  5. Step 5: Solve for x
    x = 297,276,556,739.50/628,965.59
  6. Step 6: Final answer
    x = 472,643.60

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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.