Home / 740,960.42-1,022,530.26-401,428.67

Finding the Fourth Proportional to 740,960.42, 1,022,530.26 and 401,428.67

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Solution

The fourth proportional to 740,960.42, 1,022,530.26 and 401,428.67 is: 553,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,960.42 : 1,022,530.26 = 401,428.67 : x
  2. Step 2: Convert to fraction form
    740,960.42/1,022,530.26 = 401,428.67/x
  3. Step 3: Cross multiply
    740,960.42x = 1,022,530.26 × 401,428.67
  4. Step 4: Simplify right side
    740,960.42x = 410,472,962,306.55
  5. Step 5: Solve for x
    x = 410,472,962,306.55/740,960.42
  6. Step 6: Final answer
    x = 553,974.21

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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.