Home / 738,720.42-1,108,278.03-265,409.88

Finding the Fourth Proportional to 738,720.42, 1,108,278.03 and 265,409.88

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Solution

The fourth proportional to 738,720.42, 1,108,278.03 and 265,409.88 is: 398,185.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,720.42 : 1,108,278.03 = 265,409.88 : x
  2. Step 2: Convert to fraction form
    738,720.42/1,108,278.03 = 265,409.88/x
  3. Step 3: Cross multiply
    738,720.42x = 1,108,278.03 × 265,409.88
  4. Step 4: Simplify right side
    738,720.42x = 294,147,938,948.94
  5. Step 5: Solve for x
    x = 294,147,938,948.94/738,720.42
  6. Step 6: Final answer
    x = 398,185.74

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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.