Home / 998,856.90-1,378,492.89-563,313.22

Finding the Fourth Proportional to 998,856.90, 1,378,492.89 and 563,313.22

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Solution

The fourth proportional to 998,856.90, 1,378,492.89 and 563,313.22 is: 777,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,856.90 : 1,378,492.89 = 563,313.22 : x
  2. Step 2: Convert to fraction form
    998,856.90/1,378,492.89 = 563,313.22/x
  3. Step 3: Cross multiply
    998,856.90x = 1,378,492.89 × 563,313.22
  4. Step 4: Simplify right side
    998,856.90x = 776,523,268,613.01
  5. Step 5: Solve for x
    x = 776,523,268,613.01/998,856.90
  6. Step 6: Final answer
    x = 777,411.93

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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.