Home / 1,355,745.42-1,871,094.60-782,784.63

Finding the Fourth Proportional to 1,355,745.42, 1,871,094.60 and 782,784.63

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Solution

The fourth proportional to 1,355,745.42, 1,871,094.60 and 782,784.63 is: 1,080,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,745.42 : 1,871,094.60 = 782,784.63 : x
  2. Step 2: Convert to fraction form
    1,355,745.42/1,871,094.60 = 782,784.63/x
  3. Step 3: Cross multiply
    1,355,745.42x = 1,871,094.60 × 782,784.63
  4. Step 4: Simplify right side
    1,355,745.42x = 1,464,664,094,156.00
  5. Step 5: Solve for x
    x = 1,464,664,094,156.00/1,355,745.42
  6. Step 6: Final answer
    x = 1,080,338.59

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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.