Home / 685,845.36-946,715.04-558,299.52

Finding the Fourth Proportional to 685,845.36, 946,715.04 and 558,299.52

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Solution

The fourth proportional to 685,845.36, 946,715.04 and 558,299.52 is: 770,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,845.36 : 946,715.04 = 558,299.52 : x
  2. Step 2: Convert to fraction form
    685,845.36/946,715.04 = 558,299.52/x
  3. Step 3: Cross multiply
    685,845.36x = 946,715.04 × 558,299.52
  4. Step 4: Simplify right side
    685,845.36x = 528,550,552,408.78
  5. Step 5: Solve for x
    x = 528,550,552,408.78/685,845.36
  6. Step 6: Final answer
    x = 770,655.58

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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.