Home / 670,136.85-1,005,703.65-270,781.07

Finding the Fourth Proportional to 670,136.85, 1,005,703.65 and 270,781.07

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Solution

The fourth proportional to 670,136.85, 1,005,703.65 and 270,781.07 is: 406,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,136.85 : 1,005,703.65 = 270,781.07 : x
  2. Step 2: Convert to fraction form
    670,136.85/1,005,703.65 = 270,781.07/x
  3. Step 3: Cross multiply
    670,136.85x = 1,005,703.65 × 270,781.07
  4. Step 4: Simplify right side
    670,136.85x = 272,325,505,421.39
  5. Step 5: Solve for x
    x = 272,325,505,421.39/670,136.85
  6. Step 6: Final answer
    x = 406,372.98

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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.