Home / 822,638.80-1,235,801.40-789,051.60

Finding the Fourth Proportional to 822,638.80, 1,235,801.40 and 789,051.60

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Solution

The fourth proportional to 822,638.80, 1,235,801.40 and 789,051.60 is: 1,185,345.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,638.80 : 1,235,801.40 = 789,051.60 : x
  2. Step 2: Convert to fraction form
    822,638.80/1,235,801.40 = 789,051.60/x
  3. Step 3: Cross multiply
    822,638.80x = 1,235,801.40 × 789,051.60
  4. Step 4: Simplify right side
    822,638.80x = 975,111,071,952.24
  5. Step 5: Solve for x
    x = 975,111,071,952.24/822,638.80
  6. Step 6: Final answer
    x = 1,185,345.34

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1.5x scale

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.