Home / 762,603.77-1,143,614.31-257,028.90

Finding the Fourth Proportional to 762,603.77, 1,143,614.31 and 257,028.90

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Solution

The fourth proportional to 762,603.77, 1,143,614.31 and 257,028.90 is: 385,445.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,603.77 : 1,143,614.31 = 257,028.90 : x
  2. Step 2: Convert to fraction form
    762,603.77/1,143,614.31 = 257,028.90/x
  3. Step 3: Cross multiply
    762,603.77x = 1,143,614.31 × 257,028.90
  4. Step 4: Simplify right side
    762,603.77x = 293,941,928,123.56
  5. Step 5: Solve for x
    x = 293,941,928,123.56/762,603.77
  6. Step 6: Final answer
    x = 385,445.16

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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.