Home / 992,140.80-1,485,100.80-712,204.80

Finding the Fourth Proportional to 992,140.80, 1,485,100.80 and 712,204.80

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Solution

The fourth proportional to 992,140.80, 1,485,100.80 and 712,204.80 is: 1,066,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,140.80 : 1,485,100.80 = 712,204.80 : x
  2. Step 2: Convert to fraction form
    992,140.80/1,485,100.80 = 712,204.80/x
  3. Step 3: Cross multiply
    992,140.80x = 1,485,100.80 × 712,204.80
  4. Step 4: Simplify right side
    992,140.80x = 1,057,695,918,243.84
  5. Step 5: Solve for x
    x = 1,057,695,918,243.84/992,140.80
  6. Step 6: Final answer
    x = 1,066,074.41

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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.