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Finding the Fourth Proportional to 1,144,005.84, 1,578,957.84 and 660,649.68

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Solution

The fourth proportional to 1,144,005.84, 1,578,957.84 and 660,649.68 is: 911,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,005.84 : 1,578,957.84 = 660,649.68 : x
  2. Step 2: Convert to fraction form
    1,144,005.84/1,578,957.84 = 660,649.68/x
  3. Step 3: Cross multiply
    1,144,005.84x = 1,578,957.84 × 660,649.68
  4. Step 4: Simplify right side
    1,144,005.84x = 1,043,137,991,729.49
  5. Step 5: Solve for x
    x = 1,043,137,991,729.49/1,144,005.84
  6. Step 6: Final answer
    x = 911,829.25

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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.