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Finding the Fourth Proportional to 3,579,172.04, 5,368,064.90 and 1,390,737.94

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Solution

The fourth proportional to 3,579,172.04, 5,368,064.90 and 1,390,737.94 is: 2,085,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579,172.04 : 5,368,064.90 = 1,390,737.94 : x
  2. Step 2: Convert to fraction form
    3,579,172.04/5,368,064.90 = 1,390,737.94/x
  3. Step 3: Cross multiply
    3,579,172.04x = 5,368,064.90 × 1,390,737.94
  4. Step 4: Simplify right side
    3,579,172.04x = 7,465,571,520,812.31
  5. Step 5: Solve for x
    x = 7,465,571,520,812.31/3,579,172.04
  6. Step 6: Final answer
    x = 2,085,837.57

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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.