Home / 1,071,485.20-1,605,915.60-471,809.80

Finding the Fourth Proportional to 1,071,485.20, 1,605,915.60 and 471,809.80

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Solution

The fourth proportional to 1,071,485.20, 1,605,915.60 and 471,809.80 is: 707,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,485.20 : 1,605,915.60 = 471,809.80 : x
  2. Step 2: Convert to fraction form
    1,071,485.20/1,605,915.60 = 471,809.80/x
  3. Step 3: Cross multiply
    1,071,485.20x = 1,605,915.60 × 471,809.80
  4. Step 4: Simplify right side
    1,071,485.20x = 757,686,718,052.88
  5. Step 5: Solve for x
    x = 757,686,718,052.88/1,071,485.20
  6. Step 6: Final answer
    x = 707,136.90

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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.