Home / 870,119.92-1,200,660.60-482,933.44

Finding the Fourth Proportional to 870,119.92, 1,200,660.60 and 482,933.44

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Solution

The fourth proportional to 870,119.92, 1,200,660.60 and 482,933.44 is: 666,389.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,119.92 : 1,200,660.60 = 482,933.44 : x
  2. Step 2: Convert to fraction form
    870,119.92/1,200,660.60 = 482,933.44/x
  3. Step 3: Cross multiply
    870,119.92x = 1,200,660.60 × 482,933.44
  4. Step 4: Simplify right side
    870,119.92x = 579,839,153,830.46
  5. Step 5: Solve for x
    x = 579,839,153,830.46/870,119.92
  6. Step 6: Final answer
    x = 666,389.93

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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.