Home / 853,124.40-1,280,128.20-348,055.60

Finding the Fourth Proportional to 853,124.40, 1,280,128.20 and 348,055.60

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Solution

The fourth proportional to 853,124.40, 1,280,128.20 and 348,055.60 is: 522,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,124.40 : 1,280,128.20 = 348,055.60 : x
  2. Step 2: Convert to fraction form
    853,124.40/1,280,128.20 = 348,055.60/x
  3. Step 3: Cross multiply
    853,124.40x = 1,280,128.20 × 348,055.60
  4. Step 4: Simplify right side
    853,124.40x = 445,555,788,727.92
  5. Step 5: Solve for x
    x = 445,555,788,727.92/853,124.40
  6. Step 6: Final answer
    x = 522,263.56

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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.