Home / 698,407.56-1,048,005-693,071.28

Finding the Fourth Proportional to 698,407.56, 1,048,005 and 693,071.28

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Solution

The fourth proportional to 698,407.56, 1,048,005 and 693,071.28 is: 1,039,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,407.56 : 1,048,005 = 693,071.28 : x
  2. Step 2: Convert to fraction form
    698,407.56/1,048,005 = 693,071.28/x
  3. Step 3: Cross multiply
    698,407.56x = 1,048,005 × 693,071.28
  4. Step 4: Simplify right side
    698,407.56x = 726,342,166,796.40
  5. Step 5: Solve for x
    x = 726,342,166,796.40/698,407.56
  6. Step 6: Final answer
    x = 1,039,997.57

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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.