Home / 806,860.80-1,210,291.20-719,769.60

Finding the Fourth Proportional to 806,860.80, 1,210,291.20 and 719,769.60

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Solution

The fourth proportional to 806,860.80, 1,210,291.20 and 719,769.60 is: 1,079,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,860.80 : 1,210,291.20 = 719,769.60 : x
  2. Step 2: Convert to fraction form
    806,860.80/1,210,291.20 = 719,769.60/x
  3. Step 3: Cross multiply
    806,860.80x = 1,210,291.20 × 719,769.60
  4. Step 4: Simplify right side
    806,860.80x = 871,130,812,907.52
  5. Step 5: Solve for x
    x = 871,130,812,907.52/806,860.80
  6. Step 6: Final answer
    x = 1,079,654.40

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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.