Home / 1,256,900.54-1,886,286.20-617,547.49

Finding the Fourth Proportional to 1,256,900.54, 1,886,286.20 and 617,547.49

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Solution

The fourth proportional to 1,256,900.54, 1,886,286.20 and 617,547.49 is: 926,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,900.54 : 1,886,286.20 = 617,547.49 : x
  2. Step 2: Convert to fraction form
    1,256,900.54/1,886,286.20 = 617,547.49/x
  3. Step 3: Cross multiply
    1,256,900.54x = 1,886,286.20 × 617,547.49
  4. Step 4: Simplify right side
    1,256,900.54x = 1,164,871,300,428.19
  5. Step 5: Solve for x
    x = 1,164,871,300,428.19/1,256,900.54
  6. Step 6: Final answer
    x = 926,780.81

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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.