Home / 628,814.08-867,741.76-342,328.96

Finding the Fourth Proportional to 628,814.08, 867,741.76 and 342,328.96

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Solution

The fourth proportional to 628,814.08, 867,741.76 and 342,328.96 is: 472,402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,814.08 : 867,741.76 = 342,328.96 : x
  2. Step 2: Convert to fraction form
    628,814.08/867,741.76 = 342,328.96/x
  3. Step 3: Cross multiply
    628,814.08x = 867,741.76 × 342,328.96
  4. Step 4: Simplify right side
    628,814.08x = 297,053,134,249.37
  5. Step 5: Solve for x
    x = 297,053,134,249.37/628,814.08
  6. Step 6: Final answer
    x = 472,402.17

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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.