Home / 1,911,938.40-2,638,508.76-1,040,798.28

Finding the Fourth Proportional to 1,911,938.40, 2,638,508.76 and 1,040,798.28

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Solution

The fourth proportional to 1,911,938.40, 2,638,508.76 and 1,040,798.28 is: 1,436,320.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,938.40 : 2,638,508.76 = 1,040,798.28 : x
  2. Step 2: Convert to fraction form
    1,911,938.40/2,638,508.76 = 1,040,798.28/x
  3. Step 3: Cross multiply
    1,911,938.40x = 2,638,508.76 × 1,040,798.28
  4. Step 4: Simplify right side
    1,911,938.40x = 2,746,155,379,172.93
  5. Step 5: Solve for x
    x = 2,746,155,379,172.93/1,911,938.40
  6. Step 6: Final answer
    x = 1,436,320.01

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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.