Home / 1,317,990.30-1,977,357.51-371,369.22

Finding the Fourth Proportional to 1,317,990.30, 1,977,357.51 and 371,369.22

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Solution

The fourth proportional to 1,317,990.30, 1,977,357.51 and 371,369.22 is: 557,158.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,990.30 : 1,977,357.51 = 371,369.22 : x
  2. Step 2: Convert to fraction form
    1,317,990.30/1,977,357.51 = 371,369.22/x
  3. Step 3: Cross multiply
    1,317,990.30x = 1,977,357.51 × 371,369.22
  4. Step 4: Simplify right side
    1,317,990.30x = 734,329,716,149.84
  5. Step 5: Solve for x
    x = 734,329,716,149.84/1,317,990.30
  6. Step 6: Final answer
    x = 557,158.67

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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.