Home / 1,683,374.09-2,323,056.20-919,429.47

Finding the Fourth Proportional to 1,683,374.09, 2,323,056.20 and 919,429.47

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Solution

The fourth proportional to 1,683,374.09, 2,323,056.20 and 919,429.47 is: 1,268,812.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,374.09 : 2,323,056.20 = 919,429.47 : x
  2. Step 2: Convert to fraction form
    1,683,374.09/2,323,056.20 = 919,429.47/x
  3. Step 3: Cross multiply
    1,683,374.09x = 2,323,056.20 × 919,429.47
  4. Step 4: Simplify right side
    1,683,374.09x = 2,135,886,326,149.07
  5. Step 5: Solve for x
    x = 2,135,886,326,149.07/1,683,374.09
  6. Step 6: Final answer
    x = 1,268,812.65

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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.