Home / 558,829.60-769,236.96-487,084.48

Finding the Fourth Proportional to 558,829.60, 769,236.96 and 487,084.48

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Solution

The fourth proportional to 558,829.60, 769,236.96 and 487,084.48 is: 670,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,829.60 : 769,236.96 = 487,084.48 : x
  2. Step 2: Convert to fraction form
    558,829.60/769,236.96 = 487,084.48/x
  3. Step 3: Cross multiply
    558,829.60x = 769,236.96 × 487,084.48
  4. Step 4: Simplify right side
    558,829.60x = 374,683,384,658.38
  5. Step 5: Solve for x
    x = 374,683,384,658.38/558,829.60
  6. Step 6: Final answer
    x = 670,478.77

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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.