Home / 1,868,405.13-2,803,493.43-1,111,741.40

Finding the Fourth Proportional to 1,868,405.13, 2,803,493.43 and 1,111,741.40

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Solution

The fourth proportional to 1,868,405.13, 2,803,493.43 and 1,111,741.40 is: 1,668,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,405.13 : 2,803,493.43 = 1,111,741.40 : x
  2. Step 2: Convert to fraction form
    1,868,405.13/2,803,493.43 = 1,111,741.40/x
  3. Step 3: Cross multiply
    1,868,405.13x = 2,803,493.43 × 1,111,741.40
  4. Step 4: Simplify right side
    1,868,405.13x = 3,116,759,717,767.74
  5. Step 5: Solve for x
    x = 3,116,759,717,767.74/1,868,405.13
  6. Step 6: Final answer
    x = 1,668,139.14

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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.