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Finding the Fourth Proportional to 685,858.36, 946,733 and 558,312.52

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Solution

The fourth proportional to 685,858.36, 946,733 and 558,312.52 is: 770,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,858.36 : 946,733 = 558,312.52 : x
  2. Step 2: Convert to fraction form
    685,858.36/946,733 = 558,312.52/x
  3. Step 3: Cross multiply
    685,858.36x = 946,733 × 558,312.52
  4. Step 4: Simplify right side
    685,858.36x = 528,572,886,997.16
  5. Step 5: Solve for x
    x = 528,572,886,997.16/685,858.36
  6. Step 6: Final answer
    x = 770,673.54

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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.