Home / 478,543.45-660,419.38-263,683.46

Finding the Fourth Proportional to 478,543.45, 660,419.38 and 263,683.46

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Solution

The fourth proportional to 478,543.45, 660,419.38 and 263,683.46 is: 363,899.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,543.45 : 660,419.38 = 263,683.46 : x
  2. Step 2: Convert to fraction form
    478,543.45/660,419.38 = 263,683.46/x
  3. Step 3: Cross multiply
    478,543.45x = 660,419.38 × 263,683.46
  4. Step 4: Simplify right side
    478,543.45x = 174,141,667,169.46
  5. Step 5: Solve for x
    x = 174,141,667,169.46/478,543.45
  6. Step 6: Final answer
    x = 363,899.39

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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.