Home / 1,087,420.74-1,631,341.17-413,449.64

Finding the Fourth Proportional to 1,087,420.74, 1,631,341.17 and 413,449.64

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Solution

The fourth proportional to 1,087,420.74, 1,631,341.17 and 413,449.64 is: 620,254.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,420.74 : 1,631,341.17 = 413,449.64 : x
  2. Step 2: Convert to fraction form
    1,087,420.74/1,631,341.17 = 413,449.64/x
  3. Step 3: Cross multiply
    1,087,420.74x = 1,631,341.17 × 413,449.64
  4. Step 4: Simplify right side
    1,087,420.74x = 674,477,420,976.04
  5. Step 5: Solve for x
    x = 674,477,420,976.04/1,087,420.74
  6. Step 6: Final answer
    x = 620,254.33

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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.