Home / 1,681,282.56-2,320,146-917,320.80

Finding the Fourth Proportional to 1,681,282.56, 2,320,146 and 917,320.80

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Solution

The fourth proportional to 1,681,282.56, 2,320,146 and 917,320.80 is: 1,265,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,282.56 : 2,320,146 = 917,320.80 : x
  2. Step 2: Convert to fraction form
    1,681,282.56/2,320,146 = 917,320.80/x
  3. Step 3: Cross multiply
    1,681,282.56x = 2,320,146 × 917,320.80
  4. Step 4: Simplify right side
    1,681,282.56x = 2,128,318,184,836.80
  5. Step 5: Solve for x
    x = 2,128,318,184,836.80/1,681,282.56
  6. Step 6: Final answer
    x = 1,265,889.65

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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.