Home / 1,188,938.68-1,783,033.40-390,034.06

Finding the Fourth Proportional to 1,188,938.68, 1,783,033.40 and 390,034.06

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Solution

The fourth proportional to 1,188,938.68, 1,783,033.40 and 390,034.06 is: 584,928.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,938.68 : 1,783,033.40 = 390,034.06 : x
  2. Step 2: Convert to fraction form
    1,188,938.68/1,783,033.40 = 390,034.06/x
  3. Step 3: Cross multiply
    1,188,938.68x = 1,783,033.40 × 390,034.06
  4. Step 4: Simplify right side
    1,188,938.68x = 695,443,754,167.43
  5. Step 5: Solve for x
    x = 695,443,754,167.43/1,188,938.68
  6. Step 6: Final answer
    x = 584,928.19

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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.