Home / 667,713.40-1,001,570.10-401,336.80

Finding the Fourth Proportional to 667,713.40, 1,001,570.10 and 401,336.80

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Solution

The fourth proportional to 667,713.40, 1,001,570.10 and 401,336.80 is: 602,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,713.40 : 1,001,570.10 = 401,336.80 : x
  2. Step 2: Convert to fraction form
    667,713.40/1,001,570.10 = 401,336.80/x
  3. Step 3: Cross multiply
    667,713.40x = 1,001,570.10 × 401,336.80
  4. Step 4: Simplify right side
    667,713.40x = 401,966,938,909.68
  5. Step 5: Solve for x
    x = 401,966,938,909.68/667,713.40
  6. Step 6: Final answer
    x = 602,005.20

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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.