Home / 1,355,749.55-1,871,100.29-782,788.76

Finding the Fourth Proportional to 1,355,749.55, 1,871,100.29 and 782,788.76

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Solution

The fourth proportional to 1,355,749.55, 1,871,100.29 and 782,788.76 is: 1,080,344.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,749.55 : 1,871,100.29 = 782,788.76 : x
  2. Step 2: Convert to fraction form
    1,355,749.55/1,871,100.29 = 782,788.76/x
  3. Step 3: Cross multiply
    1,355,749.55x = 1,871,100.29 × 782,788.76
  4. Step 4: Simplify right side
    1,355,749.55x = 1,464,676,268,446.21
  5. Step 5: Solve for x
    x = 1,464,676,268,446.21/1,355,749.55
  6. Step 6: Final answer
    x = 1,080,344.28

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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.