Home / 1,921,802.40-2,881,391.40-911,408.40

Finding the Fourth Proportional to 1,921,802.40, 2,881,391.40 and 911,408.40

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Solution

The fourth proportional to 1,921,802.40, 2,881,391.40 and 911,408.40 is: 1,366,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,802.40 : 2,881,391.40 = 911,408.40 : x
  2. Step 2: Convert to fraction form
    1,921,802.40/2,881,391.40 = 911,408.40/x
  3. Step 3: Cross multiply
    1,921,802.40x = 2,881,391.40 × 911,408.40
  4. Step 4: Simplify right side
    1,921,802.40x = 2,626,124,325,647.76
  5. Step 5: Solve for x
    x = 2,626,124,325,647.76/1,921,802.40
  6. Step 6: Final answer
    x = 1,366,490.29

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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.