Home / 718,789.90-1,078,313.96-245,364.57

Finding the Fourth Proportional to 718,789.90, 1,078,313.96 and 245,364.57

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Solution

The fourth proportional to 718,789.90, 1,078,313.96 and 245,364.57 is: 368,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,789.90 : 1,078,313.96 = 245,364.57 : x
  2. Step 2: Convert to fraction form
    718,789.90/1,078,313.96 = 245,364.57/x
  3. Step 3: Cross multiply
    718,789.90x = 1,078,313.96 × 245,364.57
  4. Step 4: Simplify right side
    718,789.90x = 264,580,041,120.40
  5. Step 5: Solve for x
    x = 264,580,041,120.40/718,789.90
  6. Step 6: Final answer
    x = 368,090.93

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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.