Home / 772,290.40-1,157,744.40-298,818.40

Finding the Fourth Proportional to 772,290.40, 1,157,744.40 and 298,818.40

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Solution

The fourth proportional to 772,290.40, 1,157,744.40 and 298,818.40 is: 447,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,290.40 : 1,157,744.40 = 298,818.40 : x
  2. Step 2: Convert to fraction form
    772,290.40/1,157,744.40 = 298,818.40/x
  3. Step 3: Cross multiply
    772,290.40x = 1,157,744.40 × 298,818.40
  4. Step 4: Simplify right side
    772,290.40x = 345,955,329,216.96
  5. Step 5: Solve for x
    x = 345,955,329,216.96/772,290.40
  6. Step 6: Final answer
    x = 447,960.16

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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.