Home / 1,121,043.09-1,547,072.15-611,778.27

Finding the Fourth Proportional to 1,121,043.09, 1,547,072.15 and 611,778.27

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Solution

The fourth proportional to 1,121,043.09, 1,547,072.15 and 611,778.27 is: 844,271.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,043.09 : 1,547,072.15 = 611,778.27 : x
  2. Step 2: Convert to fraction form
    1,121,043.09/1,547,072.15 = 611,778.27/x
  3. Step 3: Cross multiply
    1,121,043.09x = 1,547,072.15 × 611,778.27
  4. Step 4: Simplify right side
    1,121,043.09x = 946,465,120,433.29
  5. Step 5: Solve for x
    x = 946,465,120,433.29/1,121,043.09
  6. Step 6: Final answer
    x = 844,271.85

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1.5x scale

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.