Home / 1,253,664-1,730,056.32-717,120

Finding the Fourth Proportional to 1,253,664, 1,730,056.32 and 717,120

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Solution

The fourth proportional to 1,253,664, 1,730,056.32 and 717,120 is: 989,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,664 : 1,730,056.32 = 717,120 : x
  2. Step 2: Convert to fraction form
    1,253,664/1,730,056.32 = 717,120/x
  3. Step 3: Cross multiply
    1,253,664x = 1,730,056.32 × 717,120
  4. Step 4: Simplify right side
    1,253,664x = 1,240,657,988,198.40
  5. Step 5: Solve for x
    x = 1,240,657,988,198.40/1,253,664
  6. Step 6: Final answer
    x = 989,625.60

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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.