Home / 757,749.12-1,045,226.78-540,028.28

Finding the Fourth Proportional to 757,749.12, 1,045,226.78 and 540,028.28

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Solution

The fourth proportional to 757,749.12, 1,045,226.78 and 540,028.28 is: 744,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,749.12 : 1,045,226.78 = 540,028.28 : x
  2. Step 2: Convert to fraction form
    757,749.12/1,045,226.78 = 540,028.28/x
  3. Step 3: Cross multiply
    757,749.12x = 1,045,226.78 × 540,028.28
  4. Step 4: Simplify right side
    757,749.12x = 564,452,020,213.34
  5. Step 5: Solve for x
    x = 564,452,020,213.34/757,749.12
  6. Step 6: Final answer
    x = 744,906.20

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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.