Home / 757,658.47-1,135,238.81-679,529.11

Finding the Fourth Proportional to 757,658.47, 1,135,238.81 and 679,529.11

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Solution

The fourth proportional to 757,658.47, 1,135,238.81 and 679,529.11 is: 1,018,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,658.47 : 1,135,238.81 = 679,529.11 : x
  2. Step 2: Convert to fraction form
    757,658.47/1,135,238.81 = 679,529.11/x
  3. Step 3: Cross multiply
    757,658.47x = 1,135,238.81 × 679,529.11
  4. Step 4: Simplify right side
    757,658.47x = 771,427,811,961.02
  5. Step 5: Solve for x
    x = 771,427,811,961.02/757,658.47
  6. Step 6: Final answer
    x = 1,018,173.55

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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.