Home / 1,211,465.32-1,671,824.50-728,037.88

Finding the Fourth Proportional to 1,211,465.32, 1,671,824.50 and 728,037.88

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Solution

The fourth proportional to 1,211,465.32, 1,671,824.50 and 728,037.88 is: 1,004,693.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,465.32 : 1,671,824.50 = 728,037.88 : x
  2. Step 2: Convert to fraction form
    1,211,465.32/1,671,824.50 = 728,037.88/x
  3. Step 3: Cross multiply
    1,211,465.32x = 1,671,824.50 × 728,037.88
  4. Step 4: Simplify right side
    1,211,465.32x = 1,217,151,564,712.06
  5. Step 5: Solve for x
    x = 1,217,151,564,712.06/1,211,465.32
  6. Step 6: Final answer
    x = 1,004,693.69

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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.