Home / 998,854.90-1,378,490.13-563,311.22

Finding the Fourth Proportional to 998,854.90, 1,378,490.13 and 563,311.22

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Solution

The fourth proportional to 998,854.90, 1,378,490.13 and 563,311.22 is: 777,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,854.90 : 1,378,490.13 = 563,311.22 : x
  2. Step 2: Convert to fraction form
    998,854.90/1,378,490.13 = 563,311.22/x
  3. Step 3: Cross multiply
    998,854.90x = 1,378,490.13 × 563,311.22
  4. Step 4: Simplify right side
    998,854.90x = 776,518,947,179.25
  5. Step 5: Solve for x
    x = 776,518,947,179.25/998,854.90
  6. Step 6: Final answer
    x = 777,409.16

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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.