Home / 1,312,836.76-1,969,080-366,128.20

Finding the Fourth Proportional to 1,312,836.76, 1,969,080 and 366,128.20

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Solution

The fourth proportional to 1,312,836.76, 1,969,080 and 366,128.20 is: 549,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,836.76 : 1,969,080 = 366,128.20 : x
  2. Step 2: Convert to fraction form
    1,312,836.76/1,969,080 = 366,128.20/x
  3. Step 3: Cross multiply
    1,312,836.76x = 1,969,080 × 366,128.20
  4. Step 4: Simplify right side
    1,312,836.76x = 720,935,716,056
  5. Step 5: Solve for x
    x = 720,935,716,056/1,312,836.76
  6. Step 6: Final answer
    x = 549,143.46

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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.