Home / 777,429.36-1,072,485.78-454,939.80

Finding the Fourth Proportional to 777,429.36, 1,072,485.78 and 454,939.80

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Solution

The fourth proportional to 777,429.36, 1,072,485.78 and 454,939.80 is: 627,602.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,429.36 : 1,072,485.78 = 454,939.80 : x
  2. Step 2: Convert to fraction form
    777,429.36/1,072,485.78 = 454,939.80/x
  3. Step 3: Cross multiply
    777,429.36x = 1,072,485.78 × 454,939.80
  4. Step 4: Simplify right side
    777,429.36x = 487,916,466,256.04
  5. Step 5: Solve for x
    x = 487,916,466,256.04/777,429.36
  6. Step 6: Final answer
    x = 627,602.32

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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.