Home / 731,492.66-1,009,419.26-409,140.48

Finding the Fourth Proportional to 731,492.66, 1,009,419.26 and 409,140.48

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Solution

The fourth proportional to 731,492.66, 1,009,419.26 and 409,140.48 is: 564,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,492.66 : 1,009,419.26 = 409,140.48 : x
  2. Step 2: Convert to fraction form
    731,492.66/1,009,419.26 = 409,140.48/x
  3. Step 3: Cross multiply
    731,492.66x = 1,009,419.26 × 409,140.48
  4. Step 4: Simplify right side
    731,492.66x = 412,994,278,511.94
  5. Step 5: Solve for x
    x = 412,994,278,511.94/731,492.66
  6. Step 6: Final answer
    x = 564,591.15

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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.