Home / 1,380,551.72-1,905,160.02-776,952.68

Finding the Fourth Proportional to 1,380,551.72, 1,905,160.02 and 776,952.68

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Solution

The fourth proportional to 1,380,551.72, 1,905,160.02 and 776,952.68 is: 1,072,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,551.72 : 1,905,160.02 = 776,952.68 : x
  2. Step 2: Convert to fraction form
    1,380,551.72/1,905,160.02 = 776,952.68/x
  3. Step 3: Cross multiply
    1,380,551.72x = 1,905,160.02 × 776,952.68
  4. Step 4: Simplify right side
    1,380,551.72x = 1,480,219,183,367.85
  5. Step 5: Solve for x
    x = 1,480,219,183,367.85/1,380,551.72
  6. Step 6: Final answer
    x = 1,072,193.94

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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.