Home / 699,860.49-1,048,109.19-399,430.23

Finding the Fourth Proportional to 699,860.49, 1,048,109.19 and 399,430.23

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Solution

The fourth proportional to 699,860.49, 1,048,109.19 and 399,430.23 is: 598,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,860.49 : 1,048,109.19 = 399,430.23 : x
  2. Step 2: Convert to fraction form
    699,860.49/1,048,109.19 = 399,430.23/x
  3. Step 3: Cross multiply
    699,860.49x = 1,048,109.19 × 399,430.23
  4. Step 4: Simplify right side
    699,860.49x = 418,646,494,826.81
  5. Step 5: Solve for x
    x = 418,646,494,826.81/699,860.49
  6. Step 6: Final answer
    x = 598,185.64

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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.