Home / 744,009.40-1,115,927.70-211,612.60

Finding the Fourth Proportional to 744,009.40, 1,115,927.70 and 211,612.60

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Solution

The fourth proportional to 744,009.40, 1,115,927.70 and 211,612.60 is: 317,394.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,009.40 : 1,115,927.70 = 211,612.60 : x
  2. Step 2: Convert to fraction form
    744,009.40/1,115,927.70 = 211,612.60/x
  3. Step 3: Cross multiply
    744,009.40x = 1,115,927.70 × 211,612.60
  4. Step 4: Simplify right side
    744,009.40x = 236,144,362,009.02
  5. Step 5: Solve for x
    x = 236,144,362,009.02/744,009.40
  6. Step 6: Final answer
    x = 317,394.33

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1.5x scale

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.