Home / 1,431,271.52-1,972,971.48-1,212,673.40

Finding the Fourth Proportional to 1,431,271.52, 1,972,971.48 and 1,212,673.40

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Solution

The fourth proportional to 1,431,271.52, 1,972,971.48 and 1,212,673.40 is: 1,671,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,271.52 : 1,972,971.48 = 1,212,673.40 : x
  2. Step 2: Convert to fraction form
    1,431,271.52/1,972,971.48 = 1,212,673.40/x
  3. Step 3: Cross multiply
    1,431,271.52x = 1,972,971.48 × 1,212,673.40
  4. Step 4: Simplify right side
    1,431,271.52x = 2,392,570,032,754.63
  5. Step 5: Solve for x
    x = 2,392,570,032,754.63/1,431,271.52
  6. Step 6: Final answer
    x = 1,671,639.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.