Home / 727,744.80-1,091,617.20-612,271.20

Finding the Fourth Proportional to 727,744.80, 1,091,617.20 and 612,271.20

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Solution

The fourth proportional to 727,744.80, 1,091,617.20 and 612,271.20 is: 918,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,744.80 : 1,091,617.20 = 612,271.20 : x
  2. Step 2: Convert to fraction form
    727,744.80/1,091,617.20 = 612,271.20/x
  3. Step 3: Cross multiply
    727,744.80x = 1,091,617.20 × 612,271.20
  4. Step 4: Simplify right side
    727,744.80x = 668,365,772,984.64
  5. Step 5: Solve for x
    x = 668,365,772,984.64/727,744.80
  6. Step 6: Final answer
    x = 918,406.80

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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.