Home / 1,825,911.84-2,739,316-1,287,220.80

Finding the Fourth Proportional to 1,825,911.84, 2,739,316 and 1,287,220.80

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Solution

The fourth proportional to 1,825,911.84, 2,739,316 and 1,287,220.80 is: 1,931,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825,911.84 : 2,739,316 = 1,287,220.80 : x
  2. Step 2: Convert to fraction form
    1,825,911.84/2,739,316 = 1,287,220.80/x
  3. Step 3: Cross multiply
    1,825,911.84x = 2,739,316 × 1,287,220.80
  4. Step 4: Simplify right side
    1,825,911.84x = 3,526,104,532,972.80
  5. Step 5: Solve for x
    x = 3,526,104,532,972.80/1,825,911.84
  6. Step 6: Final answer
    x = 1,931,147.20

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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.