Home / 724,942.63-1,000,309.63-418,959.93

Finding the Fourth Proportional to 724,942.63, 1,000,309.63 and 418,959.93

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Solution

The fourth proportional to 724,942.63, 1,000,309.63 and 418,959.93 is: 578,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,942.63 : 1,000,309.63 = 418,959.93 : x
  2. Step 2: Convert to fraction form
    724,942.63/1,000,309.63 = 418,959.93/x
  3. Step 3: Cross multiply
    724,942.63x = 1,000,309.63 × 418,959.93
  4. Step 4: Simplify right side
    724,942.63x = 419,089,652,563.13
  5. Step 5: Solve for x
    x = 419,089,652,563.13/724,942.63
  6. Step 6: Final answer
    x = 578,100.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.