Home / 459,923.30-689,885.15-206,908.32

Finding the Fourth Proportional to 459,923.30, 689,885.15 and 206,908.32

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Solution

The fourth proportional to 459,923.30, 689,885.15 and 206,908.32 is: 310,362.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,923.30 : 689,885.15 = 206,908.32 : x
  2. Step 2: Convert to fraction form
    459,923.30/689,885.15 = 206,908.32/x
  3. Step 3: Cross multiply
    459,923.30x = 689,885.15 × 206,908.32
  4. Step 4: Simplify right side
    459,923.30x = 142,742,976,344.91
  5. Step 5: Solve for x
    x = 142,742,976,344.91/459,923.30
  6. Step 6: Final answer
    x = 310,362.57

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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.