Home / 641,377.20-961,409.70-375,000.60

Finding the Fourth Proportional to 641,377.20, 961,409.70 and 375,000.60

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Solution

The fourth proportional to 641,377.20, 961,409.70 and 375,000.60 is: 562,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,377.20 : 961,409.70 = 375,000.60 : x
  2. Step 2: Convert to fraction form
    641,377.20/961,409.70 = 375,000.60/x
  3. Step 3: Cross multiply
    641,377.20x = 961,409.70 × 375,000.60
  4. Step 4: Simplify right side
    641,377.20x = 360,529,214,345.82
  5. Step 5: Solve for x
    x = 360,529,214,345.82/641,377.20
  6. Step 6: Final answer
    x = 562,117.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.