Home / 724,012.71-999,137.55-401,725.13

Finding the Fourth Proportional to 724,012.71, 999,137.55 and 401,725.13

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Solution

The fourth proportional to 724,012.71, 999,137.55 and 401,725.13 is: 554,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,012.71 : 999,137.55 = 401,725.13 : x
  2. Step 2: Convert to fraction form
    724,012.71/999,137.55 = 401,725.13/x
  3. Step 3: Cross multiply
    724,012.71x = 999,137.55 × 401,725.13
  4. Step 4: Simplify right side
    724,012.71x = 401,378,657,165.94
  5. Step 5: Solve for x
    x = 401,378,657,165.94/724,012.71
  6. Step 6: Final answer
    x = 554,380.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.