Home / 1,212,578.20-1,818,134.68-483,213.60

Finding the Fourth Proportional to 1,212,578.20, 1,818,134.68 and 483,213.60

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Solution

The fourth proportional to 1,212,578.20, 1,818,134.68 and 483,213.60 is: 724,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,578.20 : 1,818,134.68 = 483,213.60 : x
  2. Step 2: Convert to fraction form
    1,212,578.20/1,818,134.68 = 483,213.60/x
  3. Step 3: Cross multiply
    1,212,578.20x = 1,818,134.68 × 483,213.60
  4. Step 4: Simplify right side
    1,212,578.20x = 878,547,404,007.65
  5. Step 5: Solve for x
    x = 878,547,404,007.65/1,212,578.20
  6. Step 6: Final answer
    x = 724,528.45

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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.