Home / 1,678,362.15-2,316,166.34-914,415.51

Finding the Fourth Proportional to 1,678,362.15, 2,316,166.34 and 914,415.51

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Solution

The fourth proportional to 1,678,362.15, 2,316,166.34 and 914,415.51 is: 1,261,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,362.15 : 2,316,166.34 = 914,415.51 : x
  2. Step 2: Convert to fraction form
    1,678,362.15/2,316,166.34 = 914,415.51/x
  3. Step 3: Cross multiply
    1,678,362.15x = 2,316,166.34 × 914,415.51
  4. Step 4: Simplify right side
    1,678,362.15x = 2,117,938,420,463.86
  5. Step 5: Solve for x
    x = 2,117,938,420,463.86/1,678,362.15
  6. Step 6: Final answer
    x = 1,261,907.88

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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.