Home / 749,999.70-1,121,719.05-670,611.60

Finding the Fourth Proportional to 749,999.70, 1,121,719.05 and 670,611.60

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Solution

The fourth proportional to 749,999.70, 1,121,719.05 and 670,611.60 is: 1,002,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,999.70 : 1,121,719.05 = 670,611.60 : x
  2. Step 2: Convert to fraction form
    749,999.70/1,121,719.05 = 670,611.60/x
  3. Step 3: Cross multiply
    749,999.70x = 1,121,719.05 × 670,611.60
  4. Step 4: Simplify right side
    749,999.70x = 752,237,806,870.98
  5. Step 5: Solve for x
    x = 752,237,806,870.98/749,999.70
  6. Step 6: Final answer
    x = 1,002,984.14

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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.