Home / 778,732.70-1,074,880.96-456,512.54

Finding the Fourth Proportional to 778,732.70, 1,074,880.96 and 456,512.54

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Solution

The fourth proportional to 778,732.70, 1,074,880.96 and 456,512.54 is: 630,122.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,732.70 : 1,074,880.96 = 456,512.54 : x
  2. Step 2: Convert to fraction form
    778,732.70/1,074,880.96 = 456,512.54/x
  3. Step 3: Cross multiply
    778,732.70x = 1,074,880.96 × 456,512.54
  4. Step 4: Simplify right side
    778,732.70x = 490,696,637,247.24
  5. Step 5: Solve for x
    x = 490,696,637,247.24/778,732.70
  6. Step 6: Final answer
    x = 630,122.04

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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.