Home / 739,717.80-1,109,639.95-259,903.90

Finding the Fourth Proportional to 739,717.80, 1,109,639.95 and 259,903.90

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Solution

The fourth proportional to 739,717.80, 1,109,639.95 and 259,903.90 is: 389,878.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,717.80 : 1,109,639.95 = 259,903.90 : x
  2. Step 2: Convert to fraction form
    739,717.80/1,109,639.95 = 259,903.90/x
  3. Step 3: Cross multiply
    739,717.80x = 1,109,639.95 × 259,903.90
  4. Step 4: Simplify right side
    739,717.80x = 288,399,748,948.21
  5. Step 5: Solve for x
    x = 288,399,748,948.21/739,717.80
  6. Step 6: Final answer
    x = 389,878.07

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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.