Home / 780,226.40-1,170,631.20-307,241.48

Finding the Fourth Proportional to 780,226.40, 1,170,631.20 and 307,241.48

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Solution

The fourth proportional to 780,226.40, 1,170,631.20 and 307,241.48 is: 460,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,226.40 : 1,170,631.20 = 307,241.48 : x
  2. Step 2: Convert to fraction form
    780,226.40/1,170,631.20 = 307,241.48/x
  3. Step 3: Cross multiply
    780,226.40x = 1,170,631.20 × 307,241.48
  4. Step 4: Simplify right side
    780,226.40x = 359,666,462,422.18
  5. Step 5: Solve for x
    x = 359,666,462,422.18/780,226.40
  6. Step 6: Final answer
    x = 460,977.05

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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.