Home / 1,215,590.76-1,677,539.16-786,618

Finding the Fourth Proportional to 1,215,590.76, 1,677,539.16 and 786,618

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Solution

The fourth proportional to 1,215,590.76, 1,677,539.16 and 786,618 is: 1,085,548.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,590.76 : 1,677,539.16 = 786,618 : x
  2. Step 2: Convert to fraction form
    1,215,590.76/1,677,539.16 = 786,618/x
  3. Step 3: Cross multiply
    1,215,590.76x = 1,677,539.16 × 786,618
  4. Step 4: Simplify right side
    1,215,590.76x = 1,319,582,498,960.88
  5. Step 5: Solve for x
    x = 1,319,582,498,960.88/1,215,590.76
  6. Step 6: Final answer
    x = 1,085,548.31

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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.