Home / 1,124,439.89-1,551,728.94-665,924.36

Finding the Fourth Proportional to 1,124,439.89, 1,551,728.94 and 665,924.36

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Solution

The fourth proportional to 1,124,439.89, 1,551,728.94 and 665,924.36 is: 918,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,439.89 : 1,551,728.94 = 665,924.36 : x
  2. Step 2: Convert to fraction form
    1,124,439.89/1,551,728.94 = 665,924.36/x
  3. Step 3: Cross multiply
    1,124,439.89x = 1,551,728.94 × 665,924.36
  4. Step 4: Simplify right side
    1,124,439.89x = 1,033,334,101,262.98
  5. Step 5: Solve for x
    x = 1,033,334,101,262.98/1,124,439.89
  6. Step 6: Final answer
    x = 918,976.74

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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.