Home / 1,431,491-2,147,249.46-434,219

Finding the Fourth Proportional to 1,431,491, 2,147,249.46 and 434,219

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Solution

The fourth proportional to 1,431,491, 2,147,249.46 and 434,219 is: 651,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,491 : 2,147,249.46 = 434,219 : x
  2. Step 2: Convert to fraction form
    1,431,491/2,147,249.46 = 434,219/x
  3. Step 3: Cross multiply
    1,431,491x = 2,147,249.46 × 434,219
  4. Step 4: Simplify right side
    1,431,491x = 932,376,513,271.74
  5. Step 5: Solve for x
    x = 932,376,513,271.74/1,431,491
  6. Step 6: Final answer
    x = 651,332.43

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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.