Home / 1,249,286.40-1,873,468.80-407,865.60

Finding the Fourth Proportional to 1,249,286.40, 1,873,468.80 and 407,865.60

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Solution

The fourth proportional to 1,249,286.40, 1,873,468.80 and 407,865.60 is: 611,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,286.40 : 1,873,468.80 = 407,865.60 : x
  2. Step 2: Convert to fraction form
    1,249,286.40/1,873,468.80 = 407,865.60/x
  3. Step 3: Cross multiply
    1,249,286.40x = 1,873,468.80 × 407,865.60
  4. Step 4: Simplify right side
    1,249,286.40x = 764,123,476,193.28
  5. Step 5: Solve for x
    x = 764,123,476,193.28/1,249,286.40
  6. Step 6: Final answer
    x = 611,647.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.