Home / 1,550,338.92-2,139,645.06-862,079.40

Finding the Fourth Proportional to 1,550,338.92, 2,139,645.06 and 862,079.40

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Solution

The fourth proportional to 1,550,338.92, 2,139,645.06 and 862,079.40 is: 1,189,768.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,338.92 : 2,139,645.06 = 862,079.40 : x
  2. Step 2: Convert to fraction form
    1,550,338.92/2,139,645.06 = 862,079.40/x
  3. Step 3: Cross multiply
    1,550,338.92x = 2,139,645.06 × 862,079.40
  4. Step 4: Simplify right side
    1,550,338.92x = 1,844,543,929,537.76
  5. Step 5: Solve for x
    x = 1,844,543,929,537.76/1,550,338.92
  6. Step 6: Final answer
    x = 1,189,768.19

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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.