Home / 990,431.97-1,485,215.33-350,523.02

Finding the Fourth Proportional to 990,431.97, 1,485,215.33 and 350,523.02

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Solution

The fourth proportional to 990,431.97, 1,485,215.33 and 350,523.02 is: 525,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,431.97 : 1,485,215.33 = 350,523.02 : x
  2. Step 2: Convert to fraction form
    990,431.97/1,485,215.33 = 350,523.02/x
  3. Step 3: Cross multiply
    990,431.97x = 1,485,215.33 × 350,523.02
  4. Step 4: Simplify right side
    990,431.97x = 520,602,153,643.21
  5. Step 5: Solve for x
    x = 520,602,153,643.21/990,431.97
  6. Step 6: Final answer
    x = 525,631.41

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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.