Home / 1,543,218.72-2,129,618.64-854,888.40

Finding the Fourth Proportional to 1,543,218.72, 2,129,618.64 and 854,888.40

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Solution

The fourth proportional to 1,543,218.72, 2,129,618.64 and 854,888.40 is: 1,179,733.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,218.72 : 2,129,618.64 = 854,888.40 : x
  2. Step 2: Convert to fraction form
    1,543,218.72/2,129,618.64 = 854,888.40/x
  3. Step 3: Cross multiply
    1,543,218.72x = 2,129,618.64 × 854,888.40
  4. Step 4: Simplify right side
    1,543,218.72x = 1,820,586,271,759.78
  5. Step 5: Solve for x
    x = 1,820,586,271,759.78/1,543,218.72
  6. Step 6: Final answer
    x = 1,179,733.14

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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.