Home / 459,929.28-689,894.16-206,914.32

Finding the Fourth Proportional to 459,929.28, 689,894.16 and 206,914.32

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Solution

The fourth proportional to 459,929.28, 689,894.16 and 206,914.32 is: 310,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,929.28 : 689,894.16 = 206,914.32 : x
  2. Step 2: Convert to fraction form
    459,929.28/689,894.16 = 206,914.32/x
  3. Step 3: Cross multiply
    459,929.28x = 689,894.16 × 206,914.32
  4. Step 4: Simplify right side
    459,929.28x = 142,748,980,988.37
  5. Step 5: Solve for x
    x = 142,748,980,988.37/459,929.28
  6. Step 6: Final answer
    x = 310,371.59

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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.