Home / 986,867.17-1,480,353.62-312,999.62

Finding the Fourth Proportional to 986,867.17, 1,480,353.62 and 312,999.62

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Solution

The fourth proportional to 986,867.17, 1,480,353.62 and 312,999.62 is: 469,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,867.17 : 1,480,353.62 = 312,999.62 : x
  2. Step 2: Convert to fraction form
    986,867.17/1,480,353.62 = 312,999.62/x
  3. Step 3: Cross multiply
    986,867.17x = 1,480,353.62 × 312,999.62
  4. Step 4: Simplify right side
    986,867.17x = 463,350,111,558.86
  5. Step 5: Solve for x
    x = 463,350,111,558.86/986,867.17
  6. Step 6: Final answer
    x = 469,516.19

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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.