Home / 724,635.90-1,087,141.77-275,364.54

Finding the Fourth Proportional to 724,635.90, 1,087,141.77 and 275,364.54

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Solution

The fourth proportional to 724,635.90, 1,087,141.77 and 275,364.54 is: 413,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,635.90 : 1,087,141.77 = 275,364.54 : x
  2. Step 2: Convert to fraction form
    724,635.90/1,087,141.77 = 275,364.54/x
  3. Step 3: Cross multiply
    724,635.90x = 1,087,141.77 × 275,364.54
  4. Step 4: Simplify right side
    724,635.90x = 299,360,293,410.84
  5. Step 5: Solve for x
    x = 299,360,293,410.84/724,635.90
  6. Step 6: Final answer
    x = 413,118.22

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1.5x scale

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.