Home / 898,980.87-1,240,631.32-517,007.96

Finding the Fourth Proportional to 898,980.87, 1,240,631.32 and 517,007.96

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Solution

The fourth proportional to 898,980.87, 1,240,631.32 and 517,007.96 is: 713,492.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,980.87 : 1,240,631.32 = 517,007.96 : x
  2. Step 2: Convert to fraction form
    898,980.87/1,240,631.32 = 517,007.96/x
  3. Step 3: Cross multiply
    898,980.87x = 1,240,631.32 × 517,007.96
  4. Step 4: Simplify right side
    898,980.87x = 641,416,265,991.39
  5. Step 5: Solve for x
    x = 641,416,265,991.39/898,980.87
  6. Step 6: Final answer
    x = 713,492.67

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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.