Home / 1,188,938.75-1,783,033.50-390,034.13

Finding the Fourth Proportional to 1,188,938.75, 1,783,033.50 and 390,034.13

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Solution

The fourth proportional to 1,188,938.75, 1,783,033.50 and 390,034.13 is: 584,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,938.75 : 1,783,033.50 = 390,034.13 : x
  2. Step 2: Convert to fraction form
    1,188,938.75/1,783,033.50 = 390,034.13/x
  3. Step 3: Cross multiply
    1,188,938.75x = 1,783,033.50 × 390,034.13
  4. Step 4: Simplify right side
    1,188,938.75x = 695,443,919,933.36
  5. Step 5: Solve for x
    x = 695,443,919,933.36/1,188,938.75
  6. Step 6: Final answer
    x = 584,928.30

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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.