Home / 1,395,899.72-1,925,851-912,747.68

Finding the Fourth Proportional to 1,395,899.72, 1,925,851 and 912,747.68

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Solution

The fourth proportional to 1,395,899.72, 1,925,851 and 912,747.68 is: 1,259,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,899.72 : 1,925,851 = 912,747.68 : x
  2. Step 2: Convert to fraction form
    1,395,899.72/1,925,851 = 912,747.68/x
  3. Step 3: Cross multiply
    1,395,899.72x = 1,925,851 × 912,747.68
  4. Step 4: Simplify right side
    1,395,899.72x = 1,757,816,032,275.68
  5. Step 5: Solve for x
    x = 1,757,816,032,275.68/1,395,899.72
  6. Step 6: Final answer
    x = 1,259,271.00

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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.