Home / 1,986,180.48-2,975,511.78-1,174,133.70

Finding the Fourth Proportional to 1,986,180.48, 2,975,511.78 and 1,174,133.70

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Solution

The fourth proportional to 1,986,180.48, 2,975,511.78 and 1,174,133.70 is: 1,758,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,180.48 : 2,975,511.78 = 1,174,133.70 : x
  2. Step 2: Convert to fraction form
    1,986,180.48/2,975,511.78 = 1,174,133.70/x
  3. Step 3: Cross multiply
    1,986,180.48x = 2,975,511.78 × 1,174,133.70
  4. Step 4: Simplify right side
    1,986,180.48x = 3,493,648,655,644.99
  5. Step 5: Solve for x
    x = 3,493,648,655,644.99/1,986,180.48
  6. Step 6: Final answer
    x = 1,758,978.45

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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.