Home / 1,558,461.15-2,150,655.30-870,143.49

Finding the Fourth Proportional to 1,558,461.15, 2,150,655.30 and 870,143.49

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Solution

The fourth proportional to 1,558,461.15, 2,150,655.30 and 870,143.49 is: 1,200,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558,461.15 : 2,150,655.30 = 870,143.49 : x
  2. Step 2: Convert to fraction form
    1,558,461.15/2,150,655.30 = 870,143.49/x
  3. Step 3: Cross multiply
    1,558,461.15x = 2,150,655.30 × 870,143.49
  4. Step 4: Simplify right side
    1,558,461.15x = 1,871,378,708,529.00
  5. Step 5: Solve for x
    x = 1,871,378,708,529.00/1,558,461.15
  6. Step 6: Final answer
    x = 1,200,786.24

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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.