Home / 1,211,380.40-1,815,029.40-957,688.40

Finding the Fourth Proportional to 1,211,380.40, 1,815,029.40 and 957,688.40

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Solution

The fourth proportional to 1,211,380.40, 1,815,029.40 and 957,688.40 is: 1,434,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,380.40 : 1,815,029.40 = 957,688.40 : x
  2. Step 2: Convert to fraction form
    1,211,380.40/1,815,029.40 = 957,688.40/x
  3. Step 3: Cross multiply
    1,211,380.40x = 1,815,029.40 × 957,688.40
  4. Step 4: Simplify right side
    1,211,380.40x = 1,738,232,602,038.96
  5. Step 5: Solve for x
    x = 1,738,232,602,038.96/1,211,380.40
  6. Step 6: Final answer
    x = 1,434,918.88

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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.