Home / 807,645.20-1,211,030.40-334,378.40

Finding the Fourth Proportional to 807,645.20, 1,211,030.40 and 334,378.40

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Solution

The fourth proportional to 807,645.20, 1,211,030.40 and 334,378.40 is: 501,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,645.20 : 1,211,030.40 = 334,378.40 : x
  2. Step 2: Convert to fraction form
    807,645.20/1,211,030.40 = 334,378.40/x
  3. Step 3: Cross multiply
    807,645.20x = 1,211,030.40 × 334,378.40
  4. Step 4: Simplify right side
    807,645.20x = 404,942,407,503.36
  5. Step 5: Solve for x
    x = 404,942,407,503.36/807,645.20
  6. Step 6: Final answer
    x = 501,386.51

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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.