Home / 1,188,945.55-1,783,043.67-390,040.93

Finding the Fourth Proportional to 1,188,945.55, 1,783,043.67 and 390,040.93

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Solution

The fourth proportional to 1,188,945.55, 1,783,043.67 and 390,040.93 is: 584,938.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,945.55 : 1,783,043.67 = 390,040.93 : x
  2. Step 2: Convert to fraction form
    1,188,945.55/1,783,043.67 = 390,040.93/x
  3. Step 3: Cross multiply
    1,188,945.55x = 1,783,043.67 × 390,040.93
  4. Step 4: Simplify right side
    1,188,945.55x = 695,460,011,277.41
  5. Step 5: Solve for x
    x = 695,460,011,277.41/1,188,945.55
  6. Step 6: Final answer
    x = 584,938.49

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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.