Home / 918,973.84-1,268,241.96-516,591.76

Finding the Fourth Proportional to 918,973.84, 1,268,241.96 and 516,591.76

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Solution

The fourth proportional to 918,973.84, 1,268,241.96 and 516,591.76 is: 712,929.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,973.84 : 1,268,241.96 = 516,591.76 : x
  2. Step 2: Convert to fraction form
    918,973.84/1,268,241.96 = 516,591.76/x
  3. Step 3: Cross multiply
    918,973.84x = 1,268,241.96 × 516,591.76
  4. Step 4: Simplify right side
    918,973.84x = 655,163,346,222.25
  5. Step 5: Solve for x
    x = 655,163,346,222.25/918,973.84
  6. Step 6: Final answer
    x = 712,929.27

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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.