Home / 740,082.42-1,021,313.70-400,550.67

Finding the Fourth Proportional to 740,082.42, 1,021,313.70 and 400,550.67

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Solution

The fourth proportional to 740,082.42, 1,021,313.70 and 400,550.67 is: 552,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,082.42 : 1,021,313.70 = 400,550.67 : x
  2. Step 2: Convert to fraction form
    740,082.42/1,021,313.70 = 400,550.67/x
  3. Step 3: Cross multiply
    740,082.42x = 1,021,313.70 × 400,550.67
  4. Step 4: Simplify right side
    740,082.42x = 409,087,886,815.18
  5. Step 5: Solve for x
    x = 409,087,886,815.18/740,082.42
  6. Step 6: Final answer
    x = 552,759.90

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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.