Home / 1,979,976.45-2,970,015.89-632,137.89

Finding the Fourth Proportional to 1,979,976.45, 2,970,015.89 and 632,137.89

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Solution

The fourth proportional to 1,979,976.45, 2,970,015.89 and 632,137.89 is: 948,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,976.45 : 2,970,015.89 = 632,137.89 : x
  2. Step 2: Convert to fraction form
    1,979,976.45/2,970,015.89 = 632,137.89/x
  3. Step 3: Cross multiply
    1,979,976.45x = 2,970,015.89 × 632,137.89
  4. Step 4: Simplify right side
    1,979,976.45x = 1,877,459,574,810.38
  5. Step 5: Solve for x
    x = 1,877,459,574,810.38/1,979,976.45
  6. Step 6: Final answer
    x = 948,223.18

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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.