Home / 998,803.68-1,499,271.69-430,465.26

Finding the Fourth Proportional to 998,803.68, 1,499,271.69 and 430,465.26

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Solution

The fourth proportional to 998,803.68, 1,499,271.69 and 430,465.26 is: 646,157.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,803.68 : 1,499,271.69 = 430,465.26 : x
  2. Step 2: Convert to fraction form
    998,803.68/1,499,271.69 = 430,465.26/x
  3. Step 3: Cross multiply
    998,803.68x = 1,499,271.69 × 430,465.26
  4. Step 4: Simplify right side
    998,803.68x = 645,384,377,846.49
  5. Step 5: Solve for x
    x = 645,384,377,846.49/998,803.68
  6. Step 6: Final answer
    x = 646,157.39

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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.