Home / 459,239.09-688,871.59-126,815.09

Finding the Fourth Proportional to 459,239.09, 688,871.59 and 126,815.09

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Solution

The fourth proportional to 459,239.09, 688,871.59 and 126,815.09 is: 190,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,239.09 : 688,871.59 = 126,815.09 : x
  2. Step 2: Convert to fraction form
    459,239.09/688,871.59 = 126,815.09/x
  3. Step 3: Cross multiply
    459,239.09x = 688,871.59 × 126,815.09
  4. Step 4: Simplify right side
    459,239.09x = 87,359,308,922.90
  5. Step 5: Solve for x
    x = 87,359,308,922.90/459,239.09
  6. Step 6: Final answer
    x = 190,226.21

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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.