Home / 779,578.47-1,169,409-247,141.05

Finding the Fourth Proportional to 779,578.47, 1,169,409 and 247,141.05

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Solution

The fourth proportional to 779,578.47, 1,169,409 and 247,141.05 is: 370,724.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,578.47 : 1,169,409 = 247,141.05 : x
  2. Step 2: Convert to fraction form
    779,578.47/1,169,409 = 247,141.05/x
  3. Step 3: Cross multiply
    779,578.47x = 1,169,409 × 247,141.05
  4. Step 4: Simplify right side
    779,578.47x = 289,008,968,139.45
  5. Step 5: Solve for x
    x = 289,008,968,139.45/779,578.47
  6. Step 6: Final answer
    x = 370,724.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.