Home / 724,340.64-1,087,577.34-405,117.96

Finding the Fourth Proportional to 724,340.64, 1,087,577.34 and 405,117.96

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Solution

The fourth proportional to 724,340.64, 1,087,577.34 and 405,117.96 is: 608,273.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,340.64 : 1,087,577.34 = 405,117.96 : x
  2. Step 2: Convert to fraction form
    724,340.64/1,087,577.34 = 405,117.96/x
  3. Step 3: Cross multiply
    724,340.64x = 1,087,577.34 × 405,117.96
  4. Step 4: Simplify right side
    724,340.64x = 440,597,113,323.03
  5. Step 5: Solve for x
    x = 440,597,113,323.03/724,340.64
  6. Step 6: Final answer
    x = 608,273.36

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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.