Home / 1,685,817.75-2,326,427.49-921,871.32

Finding the Fourth Proportional to 1,685,817.75, 2,326,427.49 and 921,871.32

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Solution

The fourth proportional to 1,685,817.75, 2,326,427.49 and 921,871.32 is: 1,272,181.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,817.75 : 2,326,427.49 = 921,871.32 : x
  2. Step 2: Convert to fraction form
    1,685,817.75/2,326,427.49 = 921,871.32/x
  3. Step 3: Cross multiply
    1,685,817.75x = 2,326,427.49 × 921,871.32
  4. Step 4: Simplify right side
    1,685,817.75x = 2,144,666,781,090.59
  5. Step 5: Solve for x
    x = 2,144,666,781,090.59/1,685,817.75
  6. Step 6: Final answer
    x = 1,272,181.87

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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.