Home / 1,263,048.72-1,742,986.86-690,076.58

Finding the Fourth Proportional to 1,263,048.72, 1,742,986.86 and 690,076.58

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Solution

The fourth proportional to 1,263,048.72, 1,742,986.86 and 690,076.58 is: 952,294.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,048.72 : 1,742,986.86 = 690,076.58 : x
  2. Step 2: Convert to fraction form
    1,263,048.72/1,742,986.86 = 690,076.58/x
  3. Step 3: Cross multiply
    1,263,048.72x = 1,742,986.86 × 690,076.58
  4. Step 4: Simplify right side
    1,263,048.72x = 1,202,794,411,333.74
  5. Step 5: Solve for x
    x = 1,202,794,411,333.74/1,263,048.72
  6. Step 6: Final answer
    x = 952,294.55

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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.