Home / 1,921,309.96-2,651,510.28-1,105,637.80

Finding the Fourth Proportional to 1,921,309.96, 2,651,510.28 and 1,105,637.80

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Solution

The fourth proportional to 1,921,309.96, 2,651,510.28 and 1,105,637.80 is: 1,525,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,309.96 : 2,651,510.28 = 1,105,637.80 : x
  2. Step 2: Convert to fraction form
    1,921,309.96/2,651,510.28 = 1,105,637.80/x
  3. Step 3: Cross multiply
    1,921,309.96x = 2,651,510.28 × 1,105,637.80
  4. Step 4: Simplify right side
    1,921,309.96x = 2,931,609,992,656.58
  5. Step 5: Solve for x
    x = 2,931,609,992,656.58/1,921,309.96
  6. Step 6: Final answer
    x = 1,525,839.17

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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.