Home / 782,043.84-1,079,220.64-442,505.28

Finding the Fourth Proportional to 782,043.84, 1,079,220.64 and 442,505.28

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Solution

The fourth proportional to 782,043.84, 1,079,220.64 and 442,505.28 is: 610,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,043.84 : 1,079,220.64 = 442,505.28 : x
  2. Step 2: Convert to fraction form
    782,043.84/1,079,220.64 = 442,505.28/x
  3. Step 3: Cross multiply
    782,043.84x = 1,079,220.64 × 442,505.28
  4. Step 4: Simplify right side
    782,043.84x = 477,560,831,484.98
  5. Step 5: Solve for x
    x = 477,560,831,484.98/782,043.84
  6. Step 6: Final answer
    x = 610,657.37

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Double scale
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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.