Home / 1,431,480-2,147,232.96-434,208

Finding the Fourth Proportional to 1,431,480, 2,147,232.96 and 434,208

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Solution

The fourth proportional to 1,431,480, 2,147,232.96 and 434,208 is: 651,315.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,480 : 2,147,232.96 = 434,208 : x
  2. Step 2: Convert to fraction form
    1,431,480/2,147,232.96 = 434,208/x
  3. Step 3: Cross multiply
    1,431,480x = 2,147,232.96 × 434,208
  4. Step 4: Simplify right side
    1,431,480x = 932,345,729,095.68
  5. Step 5: Solve for x
    x = 932,345,729,095.68/1,431,480
  6. Step 6: Final answer
    x = 651,315.93

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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.