Home / 870,087.02-1,305,573.39-396,710.87

Finding the Fourth Proportional to 870,087.02, 1,305,573.39 and 396,710.87

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Solution

The fourth proportional to 870,087.02, 1,305,573.39 and 396,710.87 is: 595,268.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,087.02 : 1,305,573.39 = 396,710.87 : x
  2. Step 2: Convert to fraction form
    870,087.02/1,305,573.39 = 396,710.87/x
  3. Step 3: Cross multiply
    870,087.02x = 1,305,573.39 × 396,710.87
  4. Step 4: Simplify right side
    870,087.02x = 517,935,148,867.88
  5. Step 5: Solve for x
    x = 517,935,148,867.88/870,087.02
  6. Step 6: Final answer
    x = 595,268.22

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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.