Home / 1,212,897.60-1,819,346.40-1,197,151.20

Finding the Fourth Proportional to 1,212,897.60, 1,819,346.40 and 1,197,151.20

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Solution

The fourth proportional to 1,212,897.60, 1,819,346.40 and 1,197,151.20 is: 1,795,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,897.60 : 1,819,346.40 = 1,197,151.20 : x
  2. Step 2: Convert to fraction form
    1,212,897.60/1,819,346.40 = 1,197,151.20/x
  3. Step 3: Cross multiply
    1,212,897.60x = 1,819,346.40 × 1,197,151.20
  4. Step 4: Simplify right side
    1,212,897.60x = 2,178,032,725,975.68
  5. Step 5: Solve for x
    x = 2,178,032,725,975.68/1,212,897.60
  6. Step 6: Final answer
    x = 1,795,726.80

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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.