Home / 1,870,905.09-2,580,920.79-1,208,389.16

Finding the Fourth Proportional to 1,870,905.09, 2,580,920.79 and 1,208,389.16

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Solution

The fourth proportional to 1,870,905.09, 2,580,920.79 and 1,208,389.16 is: 1,666,977.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,905.09 : 2,580,920.79 = 1,208,389.16 : x
  2. Step 2: Convert to fraction form
    1,870,905.09/2,580,920.79 = 1,208,389.16/x
  3. Step 3: Cross multiply
    1,870,905.09x = 2,580,920.79 × 1,208,389.16
  4. Step 4: Simplify right side
    1,870,905.09x = 3,118,756,692,550.03
  5. Step 5: Solve for x
    x = 3,118,756,692,550.03/1,870,905.09
  6. Step 6: Final answer
    x = 1,666,977.50

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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.