Home / 889,614.40-1,334,421.60-858,121.60

Finding the Fourth Proportional to 889,614.40, 1,334,421.60 and 858,121.60

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Solution

The fourth proportional to 889,614.40, 1,334,421.60 and 858,121.60 is: 1,287,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,614.40 : 1,334,421.60 = 858,121.60 : x
  2. Step 2: Convert to fraction form
    889,614.40/1,334,421.60 = 858,121.60/x
  3. Step 3: Cross multiply
    889,614.40x = 1,334,421.60 × 858,121.60
  4. Step 4: Simplify right side
    889,614.40x = 1,145,095,998,466.56
  5. Step 5: Solve for x
    x = 1,145,095,998,466.56/889,614.40
  6. Step 6: Final answer
    x = 1,287,182.40

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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.