Home / 1,390,012.46-1,917,228.12-1,275,660.46

Finding the Fourth Proportional to 1,390,012.46, 1,917,228.12 and 1,275,660.46

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Solution

The fourth proportional to 1,390,012.46, 1,917,228.12 and 1,275,660.46 is: 1,759,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,012.46 : 1,917,228.12 = 1,275,660.46 : x
  2. Step 2: Convert to fraction form
    1,390,012.46/1,917,228.12 = 1,275,660.46/x
  3. Step 3: Cross multiply
    1,390,012.46x = 1,917,228.12 × 1,275,660.46
  4. Step 4: Simplify right side
    1,390,012.46x = 2,445,732,105,484.14
  5. Step 5: Solve for x
    x = 2,445,732,105,484.14/1,390,012.46
  6. Step 6: Final answer
    x = 1,759,503.73

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