Home / 1,424,607.43-1,965,951.07-780,015.91

Finding the Fourth Proportional to 1,424,607.43, 1,965,951.07 and 780,015.91

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Solution

The fourth proportional to 1,424,607.43, 1,965,951.07 and 780,015.91 is: 1,076,418.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,607.43 : 1,965,951.07 = 780,015.91 : x
  2. Step 2: Convert to fraction form
    1,424,607.43/1,965,951.07 = 780,015.91/x
  3. Step 3: Cross multiply
    1,424,607.43x = 1,965,951.07 × 780,015.91
  4. Step 4: Simplify right side
    1,424,607.43x = 1,533,473,112,881.52
  5. Step 5: Solve for x
    x = 1,533,473,112,881.52/1,424,607.43
  6. Step 6: Final answer
    x = 1,076,418.02

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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.