Home / 786,905.40-1,182,107.70-757,162.20

Finding the Fourth Proportional to 786,905.40, 1,182,107.70 and 757,162.20

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Solution

The fourth proportional to 786,905.40, 1,182,107.70 and 757,162.20 is: 1,137,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,905.40 : 1,182,107.70 = 757,162.20 : x
  2. Step 2: Convert to fraction form
    786,905.40/1,182,107.70 = 757,162.20/x
  3. Step 3: Cross multiply
    786,905.40x = 1,182,107.70 × 757,162.20
  4. Step 4: Simplify right side
    786,905.40x = 895,047,266,768.94
  5. Step 5: Solve for x
    x = 895,047,266,768.94/786,905.40
  6. Step 6: Final answer
    x = 1,137,426.77

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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.