Home / 3,118,181-4,303,089.78-1,687,397

Finding the Fourth Proportional to 3,118,181, 4,303,089.78 and 1,687,397

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Solution

The fourth proportional to 3,118,181, 4,303,089.78 and 1,687,397 is: 2,328,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,181 : 4,303,089.78 = 1,687,397 : x
  2. Step 2: Convert to fraction form
    3,118,181/4,303,089.78 = 1,687,397/x
  3. Step 3: Cross multiply
    3,118,181x = 4,303,089.78 × 1,687,397
  4. Step 4: Simplify right side
    3,118,181x = 7,261,020,785,502.66
  5. Step 5: Solve for x
    x = 7,261,020,785,502.66/3,118,181
  6. Step 6: Final answer
    x = 2,328,607.86

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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.