Home / 669,908.30-1,004,862.45-404,187.80

Finding the Fourth Proportional to 669,908.30, 1,004,862.45 and 404,187.80

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Solution

The fourth proportional to 669,908.30, 1,004,862.45 and 404,187.80 is: 606,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,908.30 : 1,004,862.45 = 404,187.80 : x
  2. Step 2: Convert to fraction form
    669,908.30/1,004,862.45 = 404,187.80/x
  3. Step 3: Cross multiply
    669,908.30x = 1,004,862.45 × 404,187.80
  4. Step 4: Simplify right side
    669,908.30x = 406,153,142,968.11
  5. Step 5: Solve for x
    x = 406,153,142,968.11/669,908.30
  6. Step 6: Final answer
    x = 606,281.70

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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.