Home / 870,845.58-1,306,743.84-338,387.22

Finding the Fourth Proportional to 870,845.58, 1,306,743.84 and 338,387.22

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Solution

The fourth proportional to 870,845.58, 1,306,743.84 and 338,387.22 is: 507,765.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,845.58 : 1,306,743.84 = 338,387.22 : x
  2. Step 2: Convert to fraction form
    870,845.58/1,306,743.84 = 338,387.22/x
  3. Step 3: Cross multiply
    870,845.58x = 1,306,743.84 × 338,387.22
  4. Step 4: Simplify right side
    870,845.58x = 442,185,415,269.73
  5. Step 5: Solve for x
    x = 442,185,415,269.73/870,845.58
  6. Step 6: Final answer
    x = 507,765.58

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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.