Home / 1,038,789.89-1,558,678.31-719,433.22

Finding the Fourth Proportional to 1,038,789.89, 1,558,678.31 and 719,433.22

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Solution

The fourth proportional to 1,038,789.89, 1,558,678.31 and 719,433.22 is: 1,079,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,789.89 : 1,558,678.31 = 719,433.22 : x
  2. Step 2: Convert to fraction form
    1,038,789.89/1,558,678.31 = 719,433.22/x
  3. Step 3: Cross multiply
    1,038,789.89x = 1,558,678.31 × 719,433.22
  4. Step 4: Simplify right side
    1,038,789.89x = 1,121,364,955,507.46
  5. Step 5: Solve for x
    x = 1,121,364,955,507.46/1,038,789.89
  6. Step 6: Final answer
    x = 1,079,491.60

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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.