Home / 1,312,610.40-1,968,672.60-365,785.20

Finding the Fourth Proportional to 1,312,610.40, 1,968,672.60 and 365,785.20

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Solution

The fourth proportional to 1,312,610.40, 1,968,672.60 and 365,785.20 is: 548,610.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,610.40 : 1,968,672.60 = 365,785.20 : x
  2. Step 2: Convert to fraction form
    1,312,610.40/1,968,672.60 = 365,785.20/x
  3. Step 3: Cross multiply
    1,312,610.40x = 1,968,672.60 × 365,785.20
  4. Step 4: Simplify right side
    1,312,610.40x = 720,111,300,725.52
  5. Step 5: Solve for x
    x = 720,111,300,725.52/1,312,610.40
  6. Step 6: Final answer
    x = 548,610.08

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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.