Home / 990,493.77-1,485,501.42-413,805.41

Finding the Fourth Proportional to 990,493.77, 1,485,501.42 and 413,805.41

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Solution

The fourth proportional to 990,493.77, 1,485,501.42 and 413,805.41 is: 620,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,493.77 : 1,485,501.42 = 413,805.41 : x
  2. Step 2: Convert to fraction form
    990,493.77/1,485,501.42 = 413,805.41/x
  3. Step 3: Cross multiply
    990,493.77x = 1,485,501.42 × 413,805.41
  4. Step 4: Simplify right side
    990,493.77x = 614,708,523,853.58
  5. Step 5: Solve for x
    x = 614,708,523,853.58/990,493.77
  6. Step 6: Final answer
    x = 620,608.17

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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.