Home / 743,525.68-1,113,791.64-343,615.72

Finding the Fourth Proportional to 743,525.68, 1,113,791.64 and 343,615.72

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Solution

The fourth proportional to 743,525.68, 1,113,791.64 and 343,615.72 is: 514,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,525.68 : 1,113,791.64 = 343,615.72 : x
  2. Step 2: Convert to fraction form
    743,525.68/1,113,791.64 = 343,615.72/x
  3. Step 3: Cross multiply
    743,525.68x = 1,113,791.64 × 343,615.72
  4. Step 4: Simplify right side
    743,525.68x = 382,716,316,308.58
  5. Step 5: Solve for x
    x = 382,716,316,308.58/743,525.68
  6. Step 6: Final answer
    x = 514,731.81

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1.5x scale

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.