Home / 965,221.60-1,448,005.20-404,312.80

Finding the Fourth Proportional to 965,221.60, 1,448,005.20 and 404,312.80

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Solution

The fourth proportional to 965,221.60, 1,448,005.20 and 404,312.80 is: 606,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,221.60 : 1,448,005.20 = 404,312.80 : x
  2. Step 2: Convert to fraction form
    965,221.60/1,448,005.20 = 404,312.80/x
  3. Step 3: Cross multiply
    965,221.60x = 1,448,005.20 × 404,312.80
  4. Step 4: Simplify right side
    965,221.60x = 585,447,036,826.56
  5. Step 5: Solve for x
    x = 585,447,036,826.56/965,221.60
  6. Step 6: Final answer
    x = 606,541.58

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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.