Home / 763,745.29-1,145,178.91-314,776.06

Finding the Fourth Proportional to 763,745.29, 1,145,178.91 and 314,776.06

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Solution

The fourth proportional to 763,745.29, 1,145,178.91 and 314,776.06 is: 471,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,745.29 : 1,145,178.91 = 314,776.06 : x
  2. Step 2: Convert to fraction form
    763,745.29/1,145,178.91 = 314,776.06/x
  3. Step 3: Cross multiply
    763,745.29x = 1,145,178.91 × 314,776.06
  4. Step 4: Simplify right side
    763,745.29x = 360,474,905,284.90
  5. Step 5: Solve for x
    x = 360,474,905,284.90/763,745.29
  6. Step 6: Final answer
    x = 471,983.15

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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.