Home / 1,172,866.69-1,618,749.59-805,041.55

Finding the Fourth Proportional to 1,172,866.69, 1,618,749.59 and 805,041.55

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Solution

The fourth proportional to 1,172,866.69, 1,618,749.59 and 805,041.55 is: 1,111,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,866.69 : 1,618,749.59 = 805,041.55 : x
  2. Step 2: Convert to fraction form
    1,172,866.69/1,618,749.59 = 805,041.55/x
  3. Step 3: Cross multiply
    1,172,866.69x = 1,618,749.59 × 805,041.55
  4. Step 4: Simplify right side
    1,172,866.69x = 1,303,160,678,995.46
  5. Step 5: Solve for x
    x = 1,303,160,678,995.46/1,172,866.69
  6. Step 6: Final answer
    x = 1,111,090.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.