Home / 870,165.03-1,200,809.63-482,957.72

Finding the Fourth Proportional to 870,165.03, 1,200,809.63 and 482,957.72

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Solution

The fourth proportional to 870,165.03, 1,200,809.63 and 482,957.72 is: 666,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,165.03 : 1,200,809.63 = 482,957.72 : x
  2. Step 2: Convert to fraction form
    870,165.03/1,200,809.63 = 482,957.72/x
  3. Step 3: Cross multiply
    870,165.03x = 1,200,809.63 × 482,957.72
  4. Step 4: Simplify right side
    870,165.03x = 579,940,285,268.26
  5. Step 5: Solve for x
    x = 579,940,285,268.26/870,165.03
  6. Step 6: Final answer
    x = 666,471.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.