Home / 470,869.86-649,827-256,005.33

Finding the Fourth Proportional to 470,869.86, 649,827 and 256,005.33

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Solution

The fourth proportional to 470,869.86, 649,827 and 256,005.33 is: 353,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,869.86 : 649,827 = 256,005.33 : x
  2. Step 2: Convert to fraction form
    470,869.86/649,827 = 256,005.33/x
  3. Step 3: Cross multiply
    470,869.86x = 649,827 × 256,005.33
  4. Step 4: Simplify right side
    470,869.86x = 166,359,175,577.91
  5. Step 5: Solve for x
    x = 166,359,175,577.91/470,869.86
  6. Step 6: Final answer
    x = 353,301.81

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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.