Home / 757,889.40-1,045,887.57-418,357.65

Finding the Fourth Proportional to 757,889.40, 1,045,887.57 and 418,357.65

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Solution

The fourth proportional to 757,889.40, 1,045,887.57 and 418,357.65 is: 577,333.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,889.40 : 1,045,887.57 = 418,357.65 : x
  2. Step 2: Convert to fraction form
    757,889.40/1,045,887.57 = 418,357.65/x
  3. Step 3: Cross multiply
    757,889.40x = 1,045,887.57 × 418,357.65
  4. Step 4: Simplify right side
    757,889.40x = 437,555,065,949.41
  5. Step 5: Solve for x
    x = 437,555,065,949.41/757,889.40
  6. Step 6: Final answer
    x = 577,333.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.