Home / 1,680,968.62-2,319,773.53-917,021.57

Finding the Fourth Proportional to 1,680,968.62, 2,319,773.53 and 917,021.57

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Solution

The fourth proportional to 1,680,968.62, 2,319,773.53 and 917,021.57 is: 1,265,509.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,968.62 : 2,319,773.53 = 917,021.57 : x
  2. Step 2: Convert to fraction form
    1,680,968.62/2,319,773.53 = 917,021.57/x
  3. Step 3: Cross multiply
    1,680,968.62x = 2,319,773.53 × 917,021.57
  4. Step 4: Simplify right side
    1,680,968.62x = 2,127,282,364,525.04
  5. Step 5: Solve for x
    x = 2,127,282,364,525.04/1,680,968.62
  6. Step 6: Final answer
    x = 1,265,509.86

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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.