Home / 1,404,512.80-2,105,386.80-694,650.40

Finding the Fourth Proportional to 1,404,512.80, 2,105,386.80 and 694,650.40

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Solution

The fourth proportional to 1,404,512.80, 2,105,386.80 and 694,650.40 is: 1,041,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,512.80 : 2,105,386.80 = 694,650.40 : x
  2. Step 2: Convert to fraction form
    1,404,512.80/2,105,386.80 = 694,650.40/x
  3. Step 3: Cross multiply
    1,404,512.80x = 2,105,386.80 × 694,650.40
  4. Step 4: Simplify right side
    1,404,512.80x = 1,462,507,782,774.72
  5. Step 5: Solve for x
    x = 1,462,507,782,774.72/1,404,512.80
  6. Step 6: Final answer
    x = 1,041,291.89

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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.