Home / 2,078,603.40-3,116,714.54-638,912.23

Finding the Fourth Proportional to 2,078,603.40, 3,116,714.54 and 638,912.23

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Solution

The fourth proportional to 2,078,603.40, 3,116,714.54 and 638,912.23 is: 958,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,603.40 : 3,116,714.54 = 638,912.23 : x
  2. Step 2: Convert to fraction form
    2,078,603.40/3,116,714.54 = 638,912.23/x
  3. Step 3: Cross multiply
    2,078,603.40x = 3,116,714.54 × 638,912.23
  4. Step 4: Simplify right side
    2,078,603.40x = 1,991,307,041,093.56
  5. Step 5: Solve for x
    x = 1,991,307,041,093.56/2,078,603.40
  6. Step 6: Final answer
    x = 958,002.40

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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.