Home / 670,084.80-1,005,904.80-404,145.60

Finding the Fourth Proportional to 670,084.80, 1,005,904.80 and 404,145.60

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Solution

The fourth proportional to 670,084.80, 1,005,904.80 and 404,145.60 is: 606,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,084.80 : 1,005,904.80 = 404,145.60 : x
  2. Step 2: Convert to fraction form
    670,084.80/1,005,904.80 = 404,145.60/x
  3. Step 3: Cross multiply
    670,084.80x = 1,005,904.80 × 404,145.60
  4. Step 4: Simplify right side
    670,084.80x = 406,531,998,938.88
  5. Step 5: Solve for x
    x = 406,531,998,938.88/670,084.80
  6. Step 6: Final answer
    x = 606,687.39

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1.5x scale

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.