Home / 1,281,106.56-1,918,860.48-648,935.04

Finding the Fourth Proportional to 1,281,106.56, 1,918,860.48 and 648,935.04

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Solution

The fourth proportional to 1,281,106.56, 1,918,860.48 and 648,935.04 is: 971,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,106.56 : 1,918,860.48 = 648,935.04 : x
  2. Step 2: Convert to fraction form
    1,281,106.56/1,918,860.48 = 648,935.04/x
  3. Step 3: Cross multiply
    1,281,106.56x = 1,918,860.48 × 648,935.04
  4. Step 4: Simplify right side
    1,281,106.56x = 1,245,215,802,343.22
  5. Step 5: Solve for x
    x = 1,245,215,802,343.22/1,281,106.56
  6. Step 6: Final answer
    x = 971,984.56

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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.