Home / 998,946.72-1,378,549.17-636,292.98

Finding the Fourth Proportional to 998,946.72, 1,378,549.17 and 636,292.98

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Solution

The fourth proportional to 998,946.72, 1,378,549.17 and 636,292.98 is: 878,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,946.72 : 1,378,549.17 = 636,292.98 : x
  2. Step 2: Convert to fraction form
    998,946.72/1,378,549.17 = 636,292.98/x
  3. Step 3: Cross multiply
    998,946.72x = 1,378,549.17 × 636,292.98
  4. Step 4: Simplify right side
    998,946.72x = 877,161,159,455.83
  5. Step 5: Solve for x
    x = 877,161,159,455.83/998,946.72
  6. Step 6: Final answer
    x = 878,086.03

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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.