Home / 864,280.80-1,295,319.60-485,200.80

Finding the Fourth Proportional to 864,280.80, 1,295,319.60 and 485,200.80

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Solution

The fourth proportional to 864,280.80, 1,295,319.60 and 485,200.80 is: 727,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,280.80 : 1,295,319.60 = 485,200.80 : x
  2. Step 2: Convert to fraction form
    864,280.80/1,295,319.60 = 485,200.80/x
  3. Step 3: Cross multiply
    864,280.80x = 1,295,319.60 × 485,200.80
  4. Step 4: Simplify right side
    864,280.80x = 628,490,106,175.68
  5. Step 5: Solve for x
    x = 628,490,106,175.68/864,280.80
  6. Step 6: Final answer
    x = 727,182.77

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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.