Home / 470,669.40-649,195.26-309,472.92

Finding the Fourth Proportional to 470,669.40, 649,195.26 and 309,472.92

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Solution

The fourth proportional to 470,669.40, 649,195.26 and 309,472.92 is: 426,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,669.40 : 649,195.26 = 309,472.92 : x
  2. Step 2: Convert to fraction form
    470,669.40/649,195.26 = 309,472.92/x
  3. Step 3: Cross multiply
    470,669.40x = 649,195.26 × 309,472.92
  4. Step 4: Simplify right side
    470,669.40x = 200,908,352,762.36
  5. Step 5: Solve for x
    x = 200,908,352,762.36/470,669.40
  6. Step 6: Final answer
    x = 426,856.63

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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.