Home / 770,539.20-1,155,787.20-349,814.40

Finding the Fourth Proportional to 770,539.20, 1,155,787.20 and 349,814.40

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Solution

The fourth proportional to 770,539.20, 1,155,787.20 and 349,814.40 is: 524,711.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,539.20 : 1,155,787.20 = 349,814.40 : x
  2. Step 2: Convert to fraction form
    770,539.20/1,155,787.20 = 349,814.40/x
  3. Step 3: Cross multiply
    770,539.20x = 1,155,787.20 × 349,814.40
  4. Step 4: Simplify right side
    770,539.20x = 404,311,005,895.68
  5. Step 5: Solve for x
    x = 404,311,005,895.68/770,539.20
  6. Step 6: Final answer
    x = 524,711.79

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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.