Home / 1,222,188.84-1,686,595.20-678,293.04

Finding the Fourth Proportional to 1,222,188.84, 1,686,595.20 and 678,293.04

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Solution

The fourth proportional to 1,222,188.84, 1,686,595.20 and 678,293.04 is: 936,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,188.84 : 1,686,595.20 = 678,293.04 : x
  2. Step 2: Convert to fraction form
    1,222,188.84/1,686,595.20 = 678,293.04/x
  3. Step 3: Cross multiply
    1,222,188.84x = 1,686,595.20 × 678,293.04
  4. Step 4: Simplify right side
    1,222,188.84x = 1,144,005,785,457.41
  5. Step 5: Solve for x
    x = 1,144,005,785,457.41/1,222,188.84
  6. Step 6: Final answer
    x = 936,030.30

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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.