Home / 1,431,089.85-1,974,927.03-819,240.15

Finding the Fourth Proportional to 1,431,089.85, 1,974,927.03 and 819,240.15

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Solution

The fourth proportional to 1,431,089.85, 1,974,927.03 and 819,240.15 is: 1,130,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,089.85 : 1,974,927.03 = 819,240.15 : x
  2. Step 2: Convert to fraction form
    1,431,089.85/1,974,927.03 = 819,240.15/x
  3. Step 3: Cross multiply
    1,431,089.85x = 1,974,927.03 × 819,240.15
  4. Step 4: Simplify right side
    1,431,089.85x = 1,617,939,516,296.25
  5. Step 5: Solve for x
    x = 1,617,939,516,296.25/1,431,089.85
  6. Step 6: Final answer
    x = 1,130,564.59

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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.