Home / 1,263,042.36-1,742,977.86-690,070.20

Finding the Fourth Proportional to 1,263,042.36, 1,742,977.86 and 690,070.20

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Solution

The fourth proportional to 1,263,042.36, 1,742,977.86 and 690,070.20 is: 952,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,042.36 : 1,742,977.86 = 690,070.20 : x
  2. Step 2: Convert to fraction form
    1,263,042.36/1,742,977.86 = 690,070.20/x
  3. Step 3: Cross multiply
    1,263,042.36x = 1,742,977.86 × 690,070.20
  4. Step 4: Simplify right side
    1,263,042.36x = 1,202,777,080,445.77
  5. Step 5: Solve for x
    x = 1,202,777,080,445.77/1,263,042.36
  6. Step 6: Final answer
    x = 952,285.62

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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.