Home / 1,681,848.36-2,320,916.22-917,901.72

Finding the Fourth Proportional to 1,681,848.36, 2,320,916.22 and 917,901.72

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Solution

The fourth proportional to 1,681,848.36, 2,320,916.22 and 917,901.72 is: 1,266,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,848.36 : 2,320,916.22 = 917,901.72 : x
  2. Step 2: Convert to fraction form
    1,681,848.36/2,320,916.22 = 917,901.72/x
  3. Step 3: Cross multiply
    1,681,848.36x = 2,320,916.22 × 917,901.72
  4. Step 4: Simplify right side
    1,681,848.36x = 2,130,372,990,313.90
  5. Step 5: Solve for x
    x = 2,130,372,990,313.90/1,681,848.36
  6. Step 6: Final answer
    x = 1,266,685.54

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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.