Home / 724,301.15-1,087,518.23-405,078.45

Finding the Fourth Proportional to 724,301.15, 1,087,518.23 and 405,078.45

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Solution

The fourth proportional to 724,301.15, 1,087,518.23 and 405,078.45 is: 608,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,301.15 : 1,087,518.23 = 405,078.45 : x
  2. Step 2: Convert to fraction form
    724,301.15/1,087,518.23 = 405,078.45/x
  3. Step 3: Cross multiply
    724,301.15x = 1,087,518.23 × 405,078.45
  4. Step 4: Simplify right side
    724,301.15x = 440,530,197,138.26
  5. Step 5: Solve for x
    x = 440,530,197,138.26/724,301.15
  6. Step 6: Final answer
    x = 608,214.14

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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.