Home / 1,680,912.24-2,319,654.06-916,960.36

Finding the Fourth Proportional to 1,680,912.24, 2,319,654.06 and 916,960.36

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Solution

The fourth proportional to 1,680,912.24, 2,319,654.06 and 916,960.36 is: 1,265,402.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,912.24 : 2,319,654.06 = 916,960.36 : x
  2. Step 2: Convert to fraction form
    1,680,912.24/2,319,654.06 = 916,960.36/x
  3. Step 3: Cross multiply
    1,680,912.24x = 2,319,654.06 × 916,960.36
  4. Step 4: Simplify right side
    1,680,912.24x = 2,127,030,821,933.06
  5. Step 5: Solve for x
    x = 2,127,030,821,933.06/1,680,912.24
  6. Step 6: Final answer
    x = 1,265,402.66

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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.