Home / 757,887.40-1,045,884.81-418,355.65

Finding the Fourth Proportional to 757,887.40, 1,045,884.81 and 418,355.65

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Solution

The fourth proportional to 757,887.40, 1,045,884.81 and 418,355.65 is: 577,330.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,887.40 : 1,045,884.81 = 418,355.65 : x
  2. Step 2: Convert to fraction form
    757,887.40/1,045,884.81 = 418,355.65/x
  3. Step 3: Cross multiply
    757,887.40x = 1,045,884.81 × 418,355.65
  4. Step 4: Simplify right side
    757,887.40x = 437,551,819,512.68
  5. Step 5: Solve for x
    x = 437,551,819,512.68/757,887.40
  6. Step 6: Final answer
    x = 577,330.91

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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.