Home / 1,118,765.80-1,678,148.70-488,909.80

Finding the Fourth Proportional to 1,118,765.80, 1,678,148.70 and 488,909.80

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Solution

The fourth proportional to 1,118,765.80, 1,678,148.70 and 488,909.80 is: 733,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,765.80 : 1,678,148.70 = 488,909.80 : x
  2. Step 2: Convert to fraction form
    1,118,765.80/1,678,148.70 = 488,909.80/x
  3. Step 3: Cross multiply
    1,118,765.80x = 1,678,148.70 × 488,909.80
  4. Step 4: Simplify right side
    1,118,765.80x = 820,463,345,287.26
  5. Step 5: Solve for x
    x = 820,463,345,287.26/1,118,765.80
  6. Step 6: Final answer
    x = 733,364.70

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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.