Home / 3,078,139.80-4,617,209.70-1,398,523.80

Finding the Fourth Proportional to 3,078,139.80, 4,617,209.70 and 1,398,523.80

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Solution

The fourth proportional to 3,078,139.80, 4,617,209.70 and 1,398,523.80 is: 2,097,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078,139.80 : 4,617,209.70 = 1,398,523.80 : x
  2. Step 2: Convert to fraction form
    3,078,139.80/4,617,209.70 = 1,398,523.80/x
  3. Step 3: Cross multiply
    3,078,139.80x = 4,617,209.70 × 1,398,523.80
  4. Step 4: Simplify right side
    3,078,139.80x = 6,457,277,655,040.86
  5. Step 5: Solve for x
    x = 6,457,277,655,040.86/3,078,139.80
  6. Step 6: Final answer
    x = 2,097,785.70

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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.