Home / 889,201.80-1,333,802.70-815,718.60

Finding the Fourth Proportional to 889,201.80, 1,333,802.70 and 815,718.60

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Solution

The fourth proportional to 889,201.80, 1,333,802.70 and 815,718.60 is: 1,223,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,201.80 : 1,333,802.70 = 815,718.60 : x
  2. Step 2: Convert to fraction form
    889,201.80/1,333,802.70 = 815,718.60/x
  3. Step 3: Cross multiply
    889,201.80x = 1,333,802.70 × 815,718.60
  4. Step 4: Simplify right side
    889,201.80x = 1,088,007,671,120.22
  5. Step 5: Solve for x
    x = 1,088,007,671,120.22/889,201.80
  6. Step 6: Final answer
    x = 1,223,577.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.