Home / 778,752.89-1,074,475.91-456,289.73

Finding the Fourth Proportional to 778,752.89, 1,074,475.91 and 456,289.73

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Solution

The fourth proportional to 778,752.89, 1,074,475.91 and 456,289.73 is: 629,560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,752.89 : 1,074,475.91 = 456,289.73 : x
  2. Step 2: Convert to fraction form
    778,752.89/1,074,475.91 = 456,289.73/x
  3. Step 3: Cross multiply
    778,752.89x = 1,074,475.91 × 456,289.73
  4. Step 4: Simplify right side
    778,752.89x = 490,272,320,583.96
  5. Step 5: Solve for x
    x = 490,272,320,583.96/778,752.89
  6. Step 6: Final answer
    x = 629,560.84

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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.