Home / 1,291,485.90-1,782,251.46-718,526.46

Finding the Fourth Proportional to 1,291,485.90, 1,782,251.46 and 718,526.46

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Solution

The fourth proportional to 1,291,485.90, 1,782,251.46 and 718,526.46 is: 991,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,485.90 : 1,782,251.46 = 718,526.46 : x
  2. Step 2: Convert to fraction form
    1,291,485.90/1,782,251.46 = 718,526.46/x
  3. Step 3: Cross multiply
    1,291,485.90x = 1,782,251.46 × 718,526.46
  4. Step 4: Simplify right side
    1,291,485.90x = 1,280,594,832,383.63
  5. Step 5: Solve for x
    x = 1,280,594,832,383.63/1,291,485.90
  6. Step 6: Final answer
    x = 991,567.03

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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.