Home / 998,649.74-1,378,108.95-563,063.28

Finding the Fourth Proportional to 998,649.74, 1,378,108.95 and 563,063.28

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Solution

The fourth proportional to 998,649.74, 1,378,108.95 and 563,063.28 is: 777,011.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,649.74 : 1,378,108.95 = 563,063.28 : x
  2. Step 2: Convert to fraction form
    998,649.74/1,378,108.95 = 563,063.28/x
  3. Step 3: Cross multiply
    998,649.74x = 1,378,108.95 × 563,063.28
  4. Step 4: Simplify right side
    998,649.74x = 775,962,545,584.36
  5. Step 5: Solve for x
    x = 775,962,545,584.36/998,649.74
  6. Step 6: Final answer
    x = 777,011.72

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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.