Home / 3,118,736.88-4,678,270.56-988,657.20

Finding the Fourth Proportional to 3,118,736.88, 4,678,270.56 and 988,657.20

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Solution

The fourth proportional to 3,118,736.88, 4,678,270.56 and 988,657.20 is: 1,483,038.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,736.88 : 4,678,270.56 = 988,657.20 : x
  2. Step 2: Convert to fraction form
    3,118,736.88/4,678,270.56 = 988,657.20/x
  3. Step 3: Cross multiply
    3,118,736.88x = 4,678,270.56 × 988,657.20
  4. Step 4: Simplify right side
    3,118,736.88x = 4,625,205,872,692.03
  5. Step 5: Solve for x
    x = 4,625,205,872,692.03/3,118,736.88
  6. Step 6: Final answer
    x = 1,483,038.18

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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.