Home / 1,509,751.71-2,083,477.90-821,431.73

Finding the Fourth Proportional to 1,509,751.71, 2,083,477.90 and 821,431.73

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Solution

The fourth proportional to 1,509,751.71, 2,083,477.90 and 821,431.73 is: 1,133,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,751.71 : 2,083,477.90 = 821,431.73 : x
  2. Step 2: Convert to fraction form
    1,509,751.71/2,083,477.90 = 821,431.73/x
  3. Step 3: Cross multiply
    1,509,751.71x = 2,083,477.90 × 821,431.73
  4. Step 4: Simplify right side
    1,509,751.71x = 1,711,434,860,509.07
  5. Step 5: Solve for x
    x = 1,711,434,860,509.07/1,509,751.71
  6. Step 6: Final answer
    x = 1,133,586.97

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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.