Home / 1,007,698.46-1,389,003.10-680,909.45

Finding the Fourth Proportional to 1,007,698.46, 1,389,003.10 and 680,909.45

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Solution

The fourth proportional to 1,007,698.46, 1,389,003.10 and 680,909.45 is: 938,559.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,698.46 : 1,389,003.10 = 680,909.45 : x
  2. Step 2: Convert to fraction form
    1,007,698.46/1,389,003.10 = 680,909.45/x
  3. Step 3: Cross multiply
    1,007,698.46x = 1,389,003.10 × 680,909.45
  4. Step 4: Simplify right side
    1,007,698.46x = 945,785,328,222.01
  5. Step 5: Solve for x
    x = 945,785,328,222.01/1,007,698.46
  6. Step 6: Final answer
    x = 938,559.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.