Home / 980,007.20-1,470,010.80-349,632.80

Finding the Fourth Proportional to 980,007.20, 1,470,010.80 and 349,632.80

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Solution

The fourth proportional to 980,007.20, 1,470,010.80 and 349,632.80 is: 524,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,007.20 : 1,470,010.80 = 349,632.80 : x
  2. Step 2: Convert to fraction form
    980,007.20/1,470,010.80 = 349,632.80/x
  3. Step 3: Cross multiply
    980,007.20x = 1,470,010.80 × 349,632.80
  4. Step 4: Simplify right side
    980,007.20x = 513,963,992,034.24
  5. Step 5: Solve for x
    x = 513,963,992,034.24/980,007.20
  6. Step 6: Final answer
    x = 524,449.20

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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.