Home / 698,643.70-1,047,965.55-200,007.70

Finding the Fourth Proportional to 698,643.70, 1,047,965.55 and 200,007.70

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Solution

The fourth proportional to 698,643.70, 1,047,965.55 and 200,007.70 is: 300,011.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,643.70 : 1,047,965.55 = 200,007.70 : x
  2. Step 2: Convert to fraction form
    698,643.70/1,047,965.55 = 200,007.70/x
  3. Step 3: Cross multiply
    698,643.70x = 1,047,965.55 × 200,007.70
  4. Step 4: Simplify right side
    698,643.70x = 209,601,179,334.74
  5. Step 5: Solve for x
    x = 209,601,179,334.74/698,643.70
  6. Step 6: Final answer
    x = 300,011.55

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1.5x scale

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.