Home / 1,187,725.01-1,638,675.16-671,428.98

Finding the Fourth Proportional to 1,187,725.01, 1,638,675.16 and 671,428.98

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Solution

The fourth proportional to 1,187,725.01, 1,638,675.16 and 671,428.98 is: 926,354.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,725.01 : 1,638,675.16 = 671,428.98 : x
  2. Step 2: Convert to fraction form
    1,187,725.01/1,638,675.16 = 671,428.98/x
  3. Step 3: Cross multiply
    1,187,725.01x = 1,638,675.16 × 671,428.98
  4. Step 4: Simplify right side
    1,187,725.01x = 1,100,253,989,551.56
  5. Step 5: Solve for x
    x = 1,100,253,989,551.56/1,187,725.01
  6. Step 6: Final answer
    x = 926,354.15

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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.