Home / 1,289,009.08-1,778,772.18-716,084.20

Finding the Fourth Proportional to 1,289,009.08, 1,778,772.18 and 716,084.20

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Solution

The fourth proportional to 1,289,009.08, 1,778,772.18 and 716,084.20 is: 988,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,009.08 : 1,778,772.18 = 716,084.20 : x
  2. Step 2: Convert to fraction form
    1,289,009.08/1,778,772.18 = 716,084.20/x
  3. Step 3: Cross multiply
    1,289,009.08x = 1,778,772.18 × 716,084.20
  4. Step 4: Simplify right side
    1,289,009.08x = 1,273,750,653,497.56
  5. Step 5: Solve for x
    x = 1,273,750,653,497.56/1,289,009.08
  6. Step 6: Final answer
    x = 988,162.67

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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.