Home / 1,176,430.50-1,764,908.19-428,476.50

Finding the Fourth Proportional to 1,176,430.50, 1,764,908.19 and 428,476.50

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Solution

The fourth proportional to 1,176,430.50, 1,764,908.19 and 428,476.50 is: 642,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,430.50 : 1,764,908.19 = 428,476.50 : x
  2. Step 2: Convert to fraction form
    1,176,430.50/1,764,908.19 = 428,476.50/x
  3. Step 3: Cross multiply
    1,176,430.50x = 1,764,908.19 × 428,476.50
  4. Step 4: Simplify right side
    1,176,430.50x = 756,221,684,072.54
  5. Step 5: Solve for x
    x = 756,221,684,072.54/1,176,430.50
  6. Step 6: Final answer
    x = 642,810.34

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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.