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Finding the Fourth Proportional to 702,716.13, 969,751.35 and 380,426.22

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Solution

The fourth proportional to 702,716.13, 969,751.35 and 380,426.22 is: 524,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,716.13 : 969,751.35 = 380,426.22 : x
  2. Step 2: Convert to fraction form
    702,716.13/969,751.35 = 380,426.22/x
  3. Step 3: Cross multiply
    702,716.13x = 969,751.35 × 380,426.22
  4. Step 4: Simplify right side
    702,716.13x = 368,918,840,420.40
  5. Step 5: Solve for x
    x = 368,918,840,420.40/702,716.13
  6. Step 6: Final answer
    x = 524,989.86

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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.