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Finding the Fourth Proportional to 1,262,977, 1,742,908.26 and 726,433

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Solution

The fourth proportional to 1,262,977, 1,742,908.26 and 726,433 is: 1,002,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,977 : 1,742,908.26 = 726,433 : x
  2. Step 2: Convert to fraction form
    1,262,977/1,742,908.26 = 726,433/x
  3. Step 3: Cross multiply
    1,262,977x = 1,742,908.26 × 726,433
  4. Step 4: Simplify right side
    1,262,977x = 1,266,106,076,036.58
  5. Step 5: Solve for x
    x = 1,266,106,076,036.58/1,262,977
  6. Step 6: Final answer
    x = 1,002,477.54

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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.