Home / 470,815.83-649,738.67-255,970.71

Finding the Fourth Proportional to 470,815.83, 649,738.67 and 255,970.71

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Solution

The fourth proportional to 470,815.83, 649,738.67 and 255,970.71 is: 353,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,815.83 : 649,738.67 = 255,970.71 : x
  2. Step 2: Convert to fraction form
    470,815.83/649,738.67 = 255,970.71/x
  3. Step 3: Cross multiply
    470,815.83x = 649,738.67 × 255,970.71
  4. Step 4: Simplify right side
    470,815.83x = 166,314,067,394.50
  5. Step 5: Solve for x
    x = 166,314,067,394.50/470,815.83
  6. Step 6: Final answer
    x = 353,246.55

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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.