Home / 1,680,906.24-2,319,645.78-916,954.35

Finding the Fourth Proportional to 1,680,906.24, 2,319,645.78 and 916,954.35

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Solution

The fourth proportional to 1,680,906.24, 2,319,645.78 and 916,954.35 is: 1,265,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,906.24 : 2,319,645.78 = 916,954.35 : x
  2. Step 2: Convert to fraction form
    1,680,906.24/2,319,645.78 = 916,954.35/x
  3. Step 3: Cross multiply
    1,680,906.24x = 2,319,645.78 × 916,954.35
  4. Step 4: Simplify right side
    1,680,906.24x = 2,127,009,288,430.14
  5. Step 5: Solve for x
    x = 2,127,009,288,430.14/1,680,906.24
  6. Step 6: Final answer
    x = 1,265,394.37

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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.