Home / 698,730.87-1,048,096.56-218,995.90

Finding the Fourth Proportional to 698,730.87, 1,048,096.56 and 218,995.90

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Solution

The fourth proportional to 698,730.87, 1,048,096.56 and 218,995.90 is: 328,493.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,730.87 : 1,048,096.56 = 218,995.90 : x
  2. Step 2: Convert to fraction form
    698,730.87/1,048,096.56 = 218,995.90/x
  3. Step 3: Cross multiply
    698,730.87x = 1,048,096.56 × 218,995.90
  4. Step 4: Simplify right side
    698,730.87x = 229,528,853,540.64
  5. Step 5: Solve for x
    x = 229,528,853,540.64/698,730.87
  6. Step 6: Final answer
    x = 328,493.93

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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.