Home / 628,588.22-867,470.18-342,126.86

Finding the Fourth Proportional to 628,588.22, 867,470.18 and 342,126.86

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Solution

The fourth proportional to 628,588.22, 867,470.18 and 342,126.86 is: 472,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,588.22 : 867,470.18 = 342,126.86 : x
  2. Step 2: Convert to fraction form
    628,588.22/867,470.18 = 342,126.86/x
  3. Step 3: Cross multiply
    628,588.22x = 867,470.18 × 342,126.86
  4. Step 4: Simplify right side
    628,588.22x = 296,784,842,779.05
  5. Step 5: Solve for x
    x = 296,784,842,779.05/628,588.22
  6. Step 6: Final answer
    x = 472,145.10

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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.