Home / 1,421,134.56-1,961,142.02-776,539.94

Finding the Fourth Proportional to 1,421,134.56, 1,961,142.02 and 776,539.94

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Solution

The fourth proportional to 1,421,134.56, 1,961,142.02 and 776,539.94 is: 1,071,612.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,134.56 : 1,961,142.02 = 776,539.94 : x
  2. Step 2: Convert to fraction form
    1,421,134.56/1,961,142.02 = 776,539.94/x
  3. Step 3: Cross multiply
    1,421,134.56x = 1,961,142.02 × 776,539.94
  4. Step 4: Simplify right side
    1,421,134.56x = 1,522,905,106,542.28
  5. Step 5: Solve for x
    x = 1,522,905,106,542.28/1,421,134.56
  6. Step 6: Final answer
    x = 1,071,612.18

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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.