Home / 1,038,789.05-1,558,677.04-719,432.38

Finding the Fourth Proportional to 1,038,789.05, 1,558,677.04 and 719,432.38

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Solution

The fourth proportional to 1,038,789.05, 1,558,677.04 and 719,432.38 is: 1,079,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,789.05 : 1,558,677.04 = 719,432.38 : x
  2. Step 2: Convert to fraction form
    1,038,789.05/1,558,677.04 = 719,432.38/x
  3. Step 3: Cross multiply
    1,038,789.05x = 1,558,677.04 × 719,432.38
  4. Step 4: Simplify right side
    1,038,789.05x = 1,121,362,724,745.17
  5. Step 5: Solve for x
    x = 1,121,362,724,745.17/1,038,789.05
  6. Step 6: Final answer
    x = 1,079,490.32

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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.