Home / 1,259,746.80-1,889,620.20-512,329.20

Finding the Fourth Proportional to 1,259,746.80, 1,889,620.20 and 512,329.20

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Solution

The fourth proportional to 1,259,746.80, 1,889,620.20 and 512,329.20 is: 768,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,746.80 : 1,889,620.20 = 512,329.20 : x
  2. Step 2: Convert to fraction form
    1,259,746.80/1,889,620.20 = 512,329.20/x
  3. Step 3: Cross multiply
    1,259,746.80x = 1,889,620.20 × 512,329.20
  4. Step 4: Simplify right side
    1,259,746.80x = 968,107,605,369.84
  5. Step 5: Solve for x
    x = 968,107,605,369.84/1,259,746.80
  6. Step 6: Final answer
    x = 768,493.80

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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.