Home / 761,451.44-1,050,787.32-421,916.72

Finding the Fourth Proportional to 761,451.44, 1,050,787.32 and 421,916.72

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Solution

The fourth proportional to 761,451.44, 1,050,787.32 and 421,916.72 is: 582,236.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,451.44 : 1,050,787.32 = 421,916.72 : x
  2. Step 2: Convert to fraction form
    761,451.44/1,050,787.32 = 421,916.72/x
  3. Step 3: Cross multiply
    761,451.44x = 1,050,787.32 × 421,916.72
  4. Step 4: Simplify right side
    761,451.44x = 443,344,739,471.99
  5. Step 5: Solve for x
    x = 443,344,739,471.99/761,451.44
  6. Step 6: Final answer
    x = 582,236.39

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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.