Home / 1,021,476.89-1,532,211.21-311,502.87

Finding the Fourth Proportional to 1,021,476.89, 1,532,211.21 and 311,502.87

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Solution

The fourth proportional to 1,021,476.89, 1,532,211.21 and 311,502.87 is: 467,253.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,476.89 : 1,532,211.21 = 311,502.87 : x
  2. Step 2: Convert to fraction form
    1,021,476.89/1,532,211.21 = 311,502.87/x
  3. Step 3: Cross multiply
    1,021,476.89x = 1,532,211.21 × 311,502.87
  4. Step 4: Simplify right side
    1,021,476.89x = 477,288,189,361.17
  5. Step 5: Solve for x
    x = 477,288,189,361.17/1,021,476.89
  6. Step 6: Final answer
    x = 467,253.05

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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.