Home / 2,578,033.89-3,867,247.65-781,066.20

Finding the Fourth Proportional to 2,578,033.89, 3,867,247.65 and 781,066.20

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Solution

The fourth proportional to 2,578,033.89, 3,867,247.65 and 781,066.20 is: 1,171,658.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,033.89 : 3,867,247.65 = 781,066.20 : x
  2. Step 2: Convert to fraction form
    2,578,033.89/3,867,247.65 = 781,066.20/x
  3. Step 3: Cross multiply
    2,578,033.89x = 3,867,247.65 × 781,066.20
  4. Step 4: Simplify right side
    2,578,033.89x = 3,020,576,426,444.43
  5. Step 5: Solve for x
    x = 3,020,576,426,444.43/2,578,033.89
  6. Step 6: Final answer
    x = 1,171,658.93

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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.