Home / 1,121,037-1,547,063.88-611,772.20

Finding the Fourth Proportional to 1,121,037, 1,547,063.88 and 611,772.20

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Solution

The fourth proportional to 1,121,037, 1,547,063.88 and 611,772.20 is: 844,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,037 : 1,547,063.88 = 611,772.20 : x
  2. Step 2: Convert to fraction form
    1,121,037/1,547,063.88 = 611,772.20/x
  3. Step 3: Cross multiply
    1,121,037x = 1,547,063.88 × 611,772.20
  4. Step 4: Simplify right side
    1,121,037x = 946,450,673,408.14
  5. Step 5: Solve for x
    x = 946,450,673,408.14/1,121,037
  6. Step 6: Final answer
    x = 844,263.55

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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.