Home / 986,670.38-1,480,190.09-312,570.68

Finding the Fourth Proportional to 986,670.38, 1,480,190.09 and 312,570.68

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Solution

The fourth proportional to 986,670.38, 1,480,190.09 and 312,570.68 is: 468,914.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,670.38 : 1,480,190.09 = 312,570.68 : x
  2. Step 2: Convert to fraction form
    986,670.38/1,480,190.09 = 312,570.68/x
  3. Step 3: Cross multiply
    986,670.38x = 1,480,190.09 × 312,570.68
  4. Step 4: Simplify right side
    986,670.38x = 462,664,013,996.76
  5. Step 5: Solve for x
    x = 462,664,013,996.76/986,670.38
  6. Step 6: Final answer
    x = 468,914.46

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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.