Home / 889,906.25-1,227,731.68-657,890.30

Finding the Fourth Proportional to 889,906.25, 1,227,731.68 and 657,890.30

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Solution

The fourth proportional to 889,906.25, 1,227,731.68 and 657,890.30 is: 907,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,906.25 : 1,227,731.68 = 657,890.30 : x
  2. Step 2: Convert to fraction form
    889,906.25/1,227,731.68 = 657,890.30/x
  3. Step 3: Cross multiply
    889,906.25x = 1,227,731.68 × 657,890.30
  4. Step 4: Simplify right side
    889,906.25x = 807,712,767,166.40
  5. Step 5: Solve for x
    x = 807,712,767,166.40/889,906.25
  6. Step 6: Final answer
    x = 907,638.05

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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.