Home / 777,308.40-1,072,660.32-475,502.40

Finding the Fourth Proportional to 777,308.40, 1,072,660.32 and 475,502.40

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Solution

The fourth proportional to 777,308.40, 1,072,660.32 and 475,502.40 is: 656,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,308.40 : 1,072,660.32 = 475,502.40 : x
  2. Step 2: Convert to fraction form
    777,308.40/1,072,660.32 = 475,502.40/x
  3. Step 3: Cross multiply
    777,308.40x = 1,072,660.32 × 475,502.40
  4. Step 4: Simplify right side
    777,308.40x = 510,052,556,544.77
  5. Step 5: Solve for x
    x = 510,052,556,544.77/777,308.40
  6. Step 6: Final answer
    x = 656,177.85

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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.