Home / 1,186,986.80-1,780,480.20-557,130.80

Finding the Fourth Proportional to 1,186,986.80, 1,780,480.20 and 557,130.80

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Solution

The fourth proportional to 1,186,986.80, 1,780,480.20 and 557,130.80 is: 835,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,986.80 : 1,780,480.20 = 557,130.80 : x
  2. Step 2: Convert to fraction form
    1,186,986.80/1,780,480.20 = 557,130.80/x
  3. Step 3: Cross multiply
    1,186,986.80x = 1,780,480.20 × 557,130.80
  4. Step 4: Simplify right side
    1,186,986.80x = 991,960,358,210.16
  5. Step 5: Solve for x
    x = 991,960,358,210.16/1,186,986.80
  6. Step 6: Final answer
    x = 835,696.20

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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.