Home / 708,782.32-1,062,861.54-259,386.40

Finding the Fourth Proportional to 708,782.32, 1,062,861.54 and 259,386.40

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Solution

The fourth proportional to 708,782.32, 1,062,861.54 and 259,386.40 is: 388,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,782.32 : 1,062,861.54 = 259,386.40 : x
  2. Step 2: Convert to fraction form
    708,782.32/1,062,861.54 = 259,386.40/x
  3. Step 3: Cross multiply
    708,782.32x = 1,062,861.54 × 259,386.40
  4. Step 4: Simplify right side
    708,782.32x = 275,691,828,559.06
  5. Step 5: Solve for x
    x = 275,691,828,559.06/708,782.32
  6. Step 6: Final answer
    x = 388,965.44

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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.