Home / 459,955.49-689,939.44-144,412.36

Finding the Fourth Proportional to 459,955.49, 689,939.44 and 144,412.36

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Solution

The fourth proportional to 459,955.49, 689,939.44 and 144,412.36 is: 216,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,955.49 : 689,939.44 = 144,412.36 : x
  2. Step 2: Convert to fraction form
    459,955.49/689,939.44 = 144,412.36/x
  3. Step 3: Cross multiply
    459,955.49x = 689,939.44 × 144,412.36
  4. Step 4: Simplify right side
    459,955.49x = 99,635,780,701.60
  5. Step 5: Solve for x
    x = 99,635,780,701.60/459,955.49
  6. Step 6: Final answer
    x = 216,620.49

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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.