Home / 1,314,705.40-1,968,394.74-840,219.64

Finding the Fourth Proportional to 1,314,705.40, 1,968,394.74 and 840,219.64

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Solution

The fourth proportional to 1,314,705.40, 1,968,394.74 and 840,219.64 is: 1,257,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,705.40 : 1,968,394.74 = 840,219.64 : x
  2. Step 2: Convert to fraction form
    1,314,705.40/1,968,394.74 = 840,219.64/x
  3. Step 3: Cross multiply
    1,314,705.40x = 1,968,394.74 × 840,219.64
  4. Step 4: Simplify right side
    1,314,705.40x = 1,653,883,919,820.69
  5. Step 5: Solve for x
    x = 1,653,883,919,820.69/1,314,705.40
  6. Step 6: Final answer
    x = 1,257,988.23

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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.