Home / 1,993,174.20-2,990,236.47-645,337.22

Finding the Fourth Proportional to 1,993,174.20, 2,990,236.47 and 645,337.22

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Solution

The fourth proportional to 1,993,174.20, 2,990,236.47 and 645,337.22 is: 968,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,174.20 : 2,990,236.47 = 645,337.22 : x
  2. Step 2: Convert to fraction form
    1,993,174.20/2,990,236.47 = 645,337.22/x
  3. Step 3: Cross multiply
    1,993,174.20x = 2,990,236.47 × 645,337.22
  4. Step 4: Simplify right side
    1,993,174.20x = 1,929,710,875,741.23
  5. Step 5: Solve for x
    x = 1,929,710,875,741.23/1,993,174.20
  6. Step 6: Final answer
    x = 968,159.67

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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.