Home / 807,489.60-1,211,015.70-238,869.60

Finding the Fourth Proportional to 807,489.60, 1,211,015.70 and 238,869.60

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Solution

The fourth proportional to 807,489.60, 1,211,015.70 and 238,869.60 is: 358,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,489.60 : 1,211,015.70 = 238,869.60 : x
  2. Step 2: Convert to fraction form
    807,489.60/1,211,015.70 = 238,869.60/x
  3. Step 3: Cross multiply
    807,489.60x = 1,211,015.70 × 238,869.60
  4. Step 4: Simplify right side
    807,489.60x = 289,274,835,852.72
  5. Step 5: Solve for x
    x = 289,274,835,852.72/807,489.60
  6. Step 6: Final answer
    x = 358,239.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.