Home / 1,380,549.72-1,905,157.26-776,950.68

Finding the Fourth Proportional to 1,380,549.72, 1,905,157.26 and 776,950.68

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Solution

The fourth proportional to 1,380,549.72, 1,905,157.26 and 776,950.68 is: 1,072,191.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,549.72 : 1,905,157.26 = 776,950.68 : x
  2. Step 2: Convert to fraction form
    1,380,549.72/1,905,157.26 = 776,950.68/x
  3. Step 3: Cross multiply
    1,380,549.72x = 1,905,157.26 × 776,950.68
  4. Step 4: Simplify right side
    1,380,549.72x = 1,480,213,228,663.94
  5. Step 5: Solve for x
    x = 1,480,213,228,663.94/1,380,549.72
  6. Step 6: Final answer
    x = 1,072,191.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.