Home / 1,211,138.48-1,671,290.88-727,724

Finding the Fourth Proportional to 1,211,138.48, 1,671,290.88 and 727,724

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Solution

The fourth proportional to 1,211,138.48, 1,671,290.88 and 727,724 is: 1,004,210.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,138.48 : 1,671,290.88 = 727,724 : x
  2. Step 2: Convert to fraction form
    1,211,138.48/1,671,290.88 = 727,724/x
  3. Step 3: Cross multiply
    1,211,138.48x = 1,671,290.88 × 727,724
  4. Step 4: Simplify right side
    1,211,138.48x = 1,216,238,484,357.12
  5. Step 5: Solve for x
    x = 1,216,238,484,357.12/1,211,138.48
  6. Step 6: Final answer
    x = 1,004,210.92

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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.