Home / 670,087.80-1,005,909.30-404,148.60

Finding the Fourth Proportional to 670,087.80, 1,005,909.30 and 404,148.60

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Solution

The fourth proportional to 670,087.80, 1,005,909.30 and 404,148.60 is: 606,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,087.80 : 1,005,909.30 = 404,148.60 : x
  2. Step 2: Convert to fraction form
    670,087.80/1,005,909.30 = 404,148.60/x
  3. Step 3: Cross multiply
    670,087.80x = 1,005,909.30 × 404,148.60
  4. Step 4: Simplify right side
    670,087.80x = 406,536,835,321.98
  5. Step 5: Solve for x
    x = 406,536,835,321.98/670,087.80
  6. Step 6: Final answer
    x = 606,691.89

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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.