Home / 685,858.86-946,733.67-558,313.02

Finding the Fourth Proportional to 685,858.86, 946,733.67 and 558,313.02

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Solution

The fourth proportional to 685,858.86, 946,733.67 and 558,313.02 is: 770,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,858.86 : 946,733.67 = 558,313.02 : x
  2. Step 2: Convert to fraction form
    685,858.86/946,733.67 = 558,313.02/x
  3. Step 3: Cross multiply
    685,858.86x = 946,733.67 × 558,313.02
  4. Step 4: Simplify right side
    685,858.86x = 528,573,734,433.38
  5. Step 5: Solve for x
    x = 528,573,734,433.38/685,858.86
  6. Step 6: Final answer
    x = 770,674.21

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1.5x scale

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.