Home / 1,277,000.16-1,915,780.56-378,511.20

Finding the Fourth Proportional to 1,277,000.16, 1,915,780.56 and 378,511.20

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Solution

The fourth proportional to 1,277,000.16, 1,915,780.56 and 378,511.20 is: 567,849.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,000.16 : 1,915,780.56 = 378,511.20 : x
  2. Step 2: Convert to fraction form
    1,277,000.16/1,915,780.56 = 378,511.20/x
  3. Step 3: Cross multiply
    1,277,000.16x = 1,915,780.56 × 378,511.20
  4. Step 4: Simplify right side
    1,277,000.16x = 725,144,398,702.27
  5. Step 5: Solve for x
    x = 725,144,398,702.27/1,277,000.16
  6. Step 6: Final answer
    x = 567,849.89

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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.