Home / 1,200,455.23-1,656,681.29-691,321.63

Finding the Fourth Proportional to 1,200,455.23, 1,656,681.29 and 691,321.63

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Solution

The fourth proportional to 1,200,455.23, 1,656,681.29 and 691,321.63 is: 954,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,455.23 : 1,656,681.29 = 691,321.63 : x
  2. Step 2: Convert to fraction form
    1,200,455.23/1,656,681.29 = 691,321.63/x
  3. Step 3: Cross multiply
    1,200,455.23x = 1,656,681.29 × 691,321.63
  4. Step 4: Simplify right side
    1,200,455.23x = 1,145,299,608,065.00
  5. Step 5: Solve for x
    x = 1,145,299,608,065.00/1,200,455.23
  6. Step 6: Final answer
    x = 954,054.41

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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.