Home / 670,630.20-1,005,362.10-404,107.80

Finding the Fourth Proportional to 670,630.20, 1,005,362.10 and 404,107.80

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Solution

The fourth proportional to 670,630.20, 1,005,362.10 and 404,107.80 is: 605,810.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,630.20 : 1,005,362.10 = 404,107.80 : x
  2. Step 2: Convert to fraction form
    670,630.20/1,005,362.10 = 404,107.80/x
  3. Step 3: Cross multiply
    670,630.20x = 1,005,362.10 × 404,107.80
  4. Step 4: Simplify right side
    670,630.20x = 406,274,666,434.38
  5. Step 5: Solve for x
    x = 406,274,666,434.38/670,630.20
  6. Step 6: Final answer
    x = 605,810.28

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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.