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Finding the Fourth Proportional to 698,409.56, 1,048,008 and 693,073.28

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Solution

The fourth proportional to 698,409.56, 1,048,008 and 693,073.28 is: 1,040,000.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,409.56 : 1,048,008 = 693,073.28 : x
  2. Step 2: Convert to fraction form
    698,409.56/1,048,008 = 693,073.28/x
  3. Step 3: Cross multiply
    698,409.56x = 1,048,008 × 693,073.28
  4. Step 4: Simplify right side
    698,409.56x = 726,346,342,026.24
  5. Step 5: Solve for x
    x = 726,346,342,026.24/698,409.56
  6. Step 6: Final answer
    x = 1,040,000.57

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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.