Home / 1,312,729.32-1,969,093.74-315,457.32

Finding the Fourth Proportional to 1,312,729.32, 1,969,093.74 and 315,457.32

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Solution

The fourth proportional to 1,312,729.32, 1,969,093.74 and 315,457.32 is: 473,185.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,729.32 : 1,969,093.74 = 315,457.32 : x
  2. Step 2: Convert to fraction form
    1,312,729.32/1,969,093.74 = 315,457.32/x
  3. Step 3: Cross multiply
    1,312,729.32x = 1,969,093.74 × 315,457.32
  4. Step 4: Simplify right side
    1,312,729.32x = 621,165,034,049.18
  5. Step 5: Solve for x
    x = 621,165,034,049.18/1,312,729.32
  6. Step 6: Final answer
    x = 473,185.92

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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.