Home / 1,543,515.45-2,315,273.18-421,584.45

Finding the Fourth Proportional to 1,543,515.45, 2,315,273.18 and 421,584.45

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Solution

The fourth proportional to 1,543,515.45, 2,315,273.18 and 421,584.45 is: 632,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,515.45 : 2,315,273.18 = 421,584.45 : x
  2. Step 2: Convert to fraction form
    1,543,515.45/2,315,273.18 = 421,584.45/x
  3. Step 3: Cross multiply
    1,543,515.45x = 2,315,273.18 × 421,584.45
  4. Step 4: Simplify right side
    1,543,515.45x = 976,083,168,082.13
  5. Step 5: Solve for x
    x = 976,083,168,082.13/1,543,515.45
  6. Step 6: Final answer
    x = 632,376.68

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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.