Home / 749,465.68-1,123,793.71-388,742.31

Finding the Fourth Proportional to 749,465.68, 1,123,793.71 and 388,742.31

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Solution

The fourth proportional to 749,465.68, 1,123,793.71 and 388,742.31 is: 582,903.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,465.68 : 1,123,793.71 = 388,742.31 : x
  2. Step 2: Convert to fraction form
    749,465.68/1,123,793.71 = 388,742.31/x
  3. Step 3: Cross multiply
    749,465.68x = 1,123,793.71 × 388,742.31
  4. Step 4: Simplify right side
    749,465.68x = 436,866,162,788.87
  5. Step 5: Solve for x
    x = 436,866,162,788.87/749,465.68
  6. Step 6: Final answer
    x = 582,903.49

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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.