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Finding the Fourth Proportional to 670,709.03, 925,305.39 and 380,259.36

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Solution

The fourth proportional to 670,709.03, 925,305.39 and 380,259.36 is: 524,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,709.03 : 925,305.39 = 380,259.36 : x
  2. Step 2: Convert to fraction form
    670,709.03/925,305.39 = 380,259.36/x
  3. Step 3: Cross multiply
    670,709.03x = 925,305.39 × 380,259.36
  4. Step 4: Simplify right side
    670,709.03x = 351,856,035,405.95
  5. Step 5: Solve for x
    x = 351,856,035,405.95/670,709.03
  6. Step 6: Final answer
    x = 524,603.10

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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.