Home / 1,100,629.40-1,650,944.10-390,729.20

Finding the Fourth Proportional to 1,100,629.40, 1,650,944.10 and 390,729.20

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Solution

The fourth proportional to 1,100,629.40, 1,650,944.10 and 390,729.20 is: 586,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,629.40 : 1,650,944.10 = 390,729.20 : x
  2. Step 2: Convert to fraction form
    1,100,629.40/1,650,944.10 = 390,729.20/x
  3. Step 3: Cross multiply
    1,100,629.40x = 1,650,944.10 × 390,729.20
  4. Step 4: Simplify right side
    1,100,629.40x = 645,072,067,437.72
  5. Step 5: Solve for x
    x = 645,072,067,437.72/1,100,629.40
  6. Step 6: Final answer
    x = 586,093.80

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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.