Home / 740,217.64-1,021,499.22-400,687.24

Finding the Fourth Proportional to 740,217.64, 1,021,499.22 and 400,687.24

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Solution

The fourth proportional to 740,217.64, 1,021,499.22 and 400,687.24 is: 552,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,217.64 : 1,021,499.22 = 400,687.24 : x
  2. Step 2: Convert to fraction form
    740,217.64/1,021,499.22 = 400,687.24/x
  3. Step 3: Cross multiply
    740,217.64x = 1,021,499.22 × 400,687.24
  4. Step 4: Simplify right side
    740,217.64x = 409,301,703,123.95
  5. Step 5: Solve for x
    x = 409,301,703,123.95/740,217.64
  6. Step 6: Final answer
    x = 552,947.78

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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.