Home / 690,804.67-1,036,122.13-185,405.35

Finding the Fourth Proportional to 690,804.67, 1,036,122.13 and 185,405.35

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Solution

The fourth proportional to 690,804.67, 1,036,122.13 and 185,405.35 is: 278,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,804.67 : 1,036,122.13 = 185,405.35 : x
  2. Step 2: Convert to fraction form
    690,804.67/1,036,122.13 = 185,405.35/x
  3. Step 3: Cross multiply
    690,804.67x = 1,036,122.13 × 185,405.35
  4. Step 4: Simplify right side
    690,804.67x = 192,102,586,155.40
  5. Step 5: Solve for x
    x = 192,102,586,155.40/690,804.67
  6. Step 6: Final answer
    x = 278,085.25

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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.