Home / 1,678,761.90-2,518,312.95-541,230.30

Finding the Fourth Proportional to 1,678,761.90, 2,518,312.95 and 541,230.30

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Solution

The fourth proportional to 1,678,761.90, 2,518,312.95 and 541,230.30 is: 811,900.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,761.90 : 2,518,312.95 = 541,230.30 : x
  2. Step 2: Convert to fraction form
    1,678,761.90/2,518,312.95 = 541,230.30/x
  3. Step 3: Cross multiply
    1,678,761.90x = 2,518,312.95 × 541,230.30
  4. Step 4: Simplify right side
    1,678,761.90x = 1,362,987,273,422.39
  5. Step 5: Solve for x
    x = 1,362,987,273,422.39/1,678,761.90
  6. Step 6: Final answer
    x = 811,900.29

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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.