Home / 1,543,895.36-2,315,908-421,961.28

Finding the Fourth Proportional to 1,543,895.36, 2,315,908 and 421,961.28

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Solution

The fourth proportional to 1,543,895.36, 2,315,908 and 421,961.28 is: 632,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,895.36 : 2,315,908 = 421,961.28 : x
  2. Step 2: Convert to fraction form
    1,543,895.36/2,315,908 = 421,961.28/x
  3. Step 3: Cross multiply
    1,543,895.36x = 2,315,908 × 421,961.28
  4. Step 4: Simplify right side
    1,543,895.36x = 977,223,504,042.24
  5. Step 5: Solve for x
    x = 977,223,504,042.24/1,543,895.36
  6. Step 6: Final answer
    x = 632,959.67

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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.