Home / 1,311,048.30-1,809,280.40-738,108.93

Finding the Fourth Proportional to 1,311,048.30, 1,809,280.40 and 738,108.93

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Solution

The fourth proportional to 1,311,048.30, 1,809,280.40 and 738,108.93 is: 1,018,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,048.30 : 1,809,280.40 = 738,108.93 : x
  2. Step 2: Convert to fraction form
    1,311,048.30/1,809,280.40 = 738,108.93/x
  3. Step 3: Cross multiply
    1,311,048.30x = 1,809,280.40 × 738,108.93
  4. Step 4: Simplify right side
    1,311,048.30x = 1,335,446,020,113.97
  5. Step 5: Solve for x
    x = 1,335,446,020,113.97/1,311,048.30
  6. Step 6: Final answer
    x = 1,018,609.32

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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.