Home / 1,530,668.39-2,111,615.57-986,978.79

Finding the Fourth Proportional to 1,530,668.39, 2,111,615.57 and 986,978.79

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Solution

The fourth proportional to 1,530,668.39, 2,111,615.57 and 986,978.79 is: 1,361,574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,668.39 : 2,111,615.57 = 986,978.79 : x
  2. Step 2: Convert to fraction form
    1,530,668.39/2,111,615.57 = 986,978.79/x
  3. Step 3: Cross multiply
    1,530,668.39x = 2,111,615.57 × 986,978.79
  4. Step 4: Simplify right side
    1,530,668.39x = 2,084,119,775,288.87
  5. Step 5: Solve for x
    x = 2,084,119,775,288.87/1,530,668.39
  6. Step 6: Final answer
    x = 1,361,574.98

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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.