Home / 724,336.68-1,087,571.30-405,113.96

Finding the Fourth Proportional to 724,336.68, 1,087,571.30 and 405,113.96

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Solution

The fourth proportional to 724,336.68, 1,087,571.30 and 405,113.96 is: 608,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,336.68 : 1,087,571.30 = 405,113.96 : x
  2. Step 2: Convert to fraction form
    724,336.68/1,087,571.30 = 405,113.96/x
  3. Step 3: Cross multiply
    724,336.68x = 1,087,571.30 × 405,113.96
  4. Step 4: Simplify right side
    724,336.68x = 440,590,316,125.35
  5. Step 5: Solve for x
    x = 440,590,316,125.35/724,336.68
  6. Step 6: Final answer
    x = 608,267.30

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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.