Home / 1,111,838.80-1,669,313.40-691,934.80

Finding the Fourth Proportional to 1,111,838.80, 1,669,313.40 and 691,934.80

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Solution

The fourth proportional to 1,111,838.80, 1,669,313.40 and 691,934.80 is: 1,038,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,838.80 : 1,669,313.40 = 691,934.80 : x
  2. Step 2: Convert to fraction form
    1,111,838.80/1,669,313.40 = 691,934.80/x
  3. Step 3: Cross multiply
    1,111,838.80x = 1,669,313.40 × 691,934.80
  4. Step 4: Simplify right side
    1,111,838.80x = 1,155,056,033,566.32
  5. Step 5: Solve for x
    x = 1,155,056,033,566.32/1,111,838.80
  6. Step 6: Final answer
    x = 1,038,870.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.