Home / 917,006.60-1,376,546.70-543,240.20

Finding the Fourth Proportional to 917,006.60, 1,376,546.70 and 543,240.20

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Solution

The fourth proportional to 917,006.60, 1,376,546.70 and 543,240.20 is: 815,474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,006.60 : 1,376,546.70 = 543,240.20 : x
  2. Step 2: Convert to fraction form
    917,006.60/1,376,546.70 = 543,240.20/x
  3. Step 3: Cross multiply
    917,006.60x = 1,376,546.70 × 543,240.20
  4. Step 4: Simplify right side
    917,006.60x = 747,795,504,617.34
  5. Step 5: Solve for x
    x = 747,795,504,617.34/917,006.60
  6. Step 6: Final answer
    x = 815,474.51

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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.