Home / 558,426.70-768,683.33-486,683.38

Finding the Fourth Proportional to 558,426.70, 768,683.33 and 486,683.38

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Solution

The fourth proportional to 558,426.70, 768,683.33 and 486,683.38 is: 669,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,426.70 : 768,683.33 = 486,683.38 : x
  2. Step 2: Convert to fraction form
    558,426.70/768,683.33 = 486,683.38/x
  3. Step 3: Cross multiply
    558,426.70x = 768,683.33 × 486,683.38
  4. Step 4: Simplify right side
    558,426.70x = 374,105,397,350.64
  5. Step 5: Solve for x
    x = 374,105,397,350.64/558,426.70
  6. Step 6: Final answer
    x = 669,927.50

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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.