Home / 628,477.92-867,317.76-342,016.50

Finding the Fourth Proportional to 628,477.92, 867,317.76 and 342,016.50

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Solution

The fourth proportional to 628,477.92, 867,317.76 and 342,016.50 is: 471,992.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,477.92 : 867,317.76 = 342,016.50 : x
  2. Step 2: Convert to fraction form
    628,477.92/867,317.76 = 342,016.50/x
  3. Step 3: Cross multiply
    628,477.92x = 867,317.76 × 342,016.50
  4. Step 4: Simplify right side
    628,477.92x = 296,636,984,663.04
  5. Step 5: Solve for x
    x = 296,636,984,663.04/628,477.92
  6. Step 6: Final answer
    x = 471,992.69

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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.