Home / 1,211,397.40-1,815,054.90-957,705.40

Finding the Fourth Proportional to 1,211,397.40, 1,815,054.90 and 957,705.40

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Solution

The fourth proportional to 1,211,397.40, 1,815,054.90 and 957,705.40 is: 1,434,944.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,397.40 : 1,815,054.90 = 957,705.40 : x
  2. Step 2: Convert to fraction form
    1,211,397.40/1,815,054.90 = 957,705.40/x
  3. Step 3: Cross multiply
    1,211,397.40x = 1,815,054.90 × 957,705.40
  4. Step 4: Simplify right side
    1,211,397.40x = 1,738,287,879,026.46
  5. Step 5: Solve for x
    x = 1,738,287,879,026.46/1,211,397.40
  6. Step 6: Final answer
    x = 1,434,944.37

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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.