Home / 1,039,223.60-1,558,511.40-408,330.80

Finding the Fourth Proportional to 1,039,223.60, 1,558,511.40 and 408,330.80

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Solution

The fourth proportional to 1,039,223.60, 1,558,511.40 and 408,330.80 is: 612,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,223.60 : 1,558,511.40 = 408,330.80 : x
  2. Step 2: Convert to fraction form
    1,039,223.60/1,558,511.40 = 408,330.80/x
  3. Step 3: Cross multiply
    1,039,223.60x = 1,558,511.40 × 408,330.80
  4. Step 4: Simplify right side
    1,039,223.60x = 636,388,206,771.12
  5. Step 5: Solve for x
    x = 636,388,206,771.12/1,039,223.60
  6. Step 6: Final answer
    x = 612,368.89

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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.