Home / 743,701.26-1,026,268.46-421,415.22

Finding the Fourth Proportional to 743,701.26, 1,026,268.46 and 421,415.22

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Solution

The fourth proportional to 743,701.26, 1,026,268.46 and 421,415.22 is: 581,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,701.26 : 1,026,268.46 = 421,415.22 : x
  2. Step 2: Convert to fraction form
    743,701.26/1,026,268.46 = 421,415.22/x
  3. Step 3: Cross multiply
    743,701.26x = 1,026,268.46 × 421,415.22
  4. Step 4: Simplify right side
    743,701.26x = 432,485,148,849.96
  5. Step 5: Solve for x
    x = 432,485,148,849.96/743,701.26
  6. Step 6: Final answer
    x = 581,530.75

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1.5x scale

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.