Home / 853,669.40-1,280,568.90-254,583.68

Finding the Fourth Proportional to 853,669.40, 1,280,568.90 and 254,583.68

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Solution

The fourth proportional to 853,669.40, 1,280,568.90 and 254,583.68 is: 381,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,669.40 : 1,280,568.90 = 254,583.68 : x
  2. Step 2: Convert to fraction form
    853,669.40/1,280,568.90 = 254,583.68/x
  3. Step 3: Cross multiply
    853,669.40x = 1,280,568.90 × 254,583.68
  4. Step 4: Simplify right side
    853,669.40x = 326,011,943,055.55
  5. Step 5: Solve for x
    x = 326,011,943,055.55/853,669.40
  6. Step 6: Final answer
    x = 381,894.84

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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.