Home / 1,308,680-1,963,480.80-644,298.56

Finding the Fourth Proportional to 1,308,680, 1,963,480.80 and 644,298.56

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Solution

The fourth proportional to 1,308,680, 1,963,480.80 and 644,298.56 is: 966,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,680 : 1,963,480.80 = 644,298.56 : x
  2. Step 2: Convert to fraction form
    1,308,680/1,963,480.80 = 644,298.56/x
  3. Step 3: Cross multiply
    1,308,680x = 1,963,480.80 × 644,298.56
  4. Step 4: Simplify right side
    1,308,680x = 1,265,067,852,027.65
  5. Step 5: Solve for x
    x = 1,265,067,852,027.65/1,308,680
  6. Step 6: Final answer
    x = 966,674.70

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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.