Home / 989,169.17-1,483,966.98-515,727.41

Finding the Fourth Proportional to 989,169.17, 1,483,966.98 and 515,727.41

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Solution

The fourth proportional to 989,169.17, 1,483,966.98 and 515,727.41 is: 773,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,169.17 : 1,483,966.98 = 515,727.41 : x
  2. Step 2: Convert to fraction form
    989,169.17/1,483,966.98 = 515,727.41/x
  3. Step 3: Cross multiply
    989,169.17x = 1,483,966.98 × 515,727.41
  4. Step 4: Simplify right side
    989,169.17x = 765,322,439,701.09
  5. Step 5: Solve for x
    x = 765,322,439,701.09/989,169.17
  6. Step 6: Final answer
    x = 773,702.28

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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.