Home / 2,678,142.47-4,015,969.85-972,069.24

Finding the Fourth Proportional to 2,678,142.47, 4,015,969.85 and 972,069.24

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Solution

The fourth proportional to 2,678,142.47, 4,015,969.85 and 972,069.24 is: 1,457,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678,142.47 : 4,015,969.85 = 972,069.24 : x
  2. Step 2: Convert to fraction form
    2,678,142.47/4,015,969.85 = 972,069.24/x
  3. Step 3: Cross multiply
    2,678,142.47x = 4,015,969.85 × 972,069.24
  4. Step 4: Simplify right side
    2,678,142.47x = 3,903,800,755,092.07
  5. Step 5: Solve for x
    x = 3,903,800,755,092.07/2,678,142.47
  6. Step 6: Final answer
    x = 1,457,652.39

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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.