Home / 714,783.05-1,071,936.70-288,208.70

Finding the Fourth Proportional to 714,783.05, 1,071,936.70 and 288,208.70

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Solution

The fourth proportional to 714,783.05, 1,071,936.70 and 288,208.70 is: 432,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,783.05 : 1,071,936.70 = 288,208.70 : x
  2. Step 2: Convert to fraction form
    714,783.05/1,071,936.70 = 288,208.70/x
  3. Step 3: Cross multiply
    714,783.05x = 1,071,936.70 × 288,208.70
  4. Step 4: Simplify right side
    714,783.05x = 308,941,482,789.29
  5. Step 5: Solve for x
    x = 308,941,482,789.29/714,783.05
  6. Step 6: Final answer
    x = 432,217.14

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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.