Home / 470,823.84-649,879.20-320,008.32

Finding the Fourth Proportional to 470,823.84, 649,879.20 and 320,008.32

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Solution

The fourth proportional to 470,823.84, 649,879.20 and 320,008.32 is: 441,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,823.84 : 649,879.20 = 320,008.32 : x
  2. Step 2: Convert to fraction form
    470,823.84/649,879.20 = 320,008.32/x
  3. Step 3: Cross multiply
    470,823.84x = 649,879.20 × 320,008.32
  4. Step 4: Simplify right side
    470,823.84x = 207,966,750,994.94
  5. Step 5: Solve for x
    x = 207,966,750,994.94/470,823.84
  6. Step 6: Final answer
    x = 441,708.20

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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.