Home / 1,898,673.81-2,620,543.35-1,438,986.57

Finding the Fourth Proportional to 1,898,673.81, 2,620,543.35 and 1,438,986.57

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Solution

The fourth proportional to 1,898,673.81, 2,620,543.35 and 1,438,986.57 is: 1,986,084.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,673.81 : 2,620,543.35 = 1,438,986.57 : x
  2. Step 2: Convert to fraction form
    1,898,673.81/2,620,543.35 = 1,438,986.57/x
  3. Step 3: Cross multiply
    1,898,673.81x = 2,620,543.35 × 1,438,986.57
  4. Step 4: Simplify right side
    1,898,673.81x = 3,770,926,686,752.81
  5. Step 5: Solve for x
    x = 3,770,926,686,752.81/1,898,673.81
  6. Step 6: Final answer
    x = 1,986,084.53

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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.