Home / 1,326,237.51-1,989,744.45-427,661.17

Finding the Fourth Proportional to 1,326,237.51, 1,989,744.45 and 427,661.17

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Solution

The fourth proportional to 1,326,237.51, 1,989,744.45 and 427,661.17 is: 641,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,237.51 : 1,989,744.45 = 427,661.17 : x
  2. Step 2: Convert to fraction form
    1,326,237.51/1,989,744.45 = 427,661.17/x
  3. Step 3: Cross multiply
    1,326,237.51x = 1,989,744.45 × 427,661.17
  4. Step 4: Simplify right side
    1,326,237.51x = 850,936,439,488.01
  5. Step 5: Solve for x
    x = 850,936,439,488.01/1,326,237.51
  6. Step 6: Final answer
    x = 641,616.93

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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.