Home / 778,751.52-1,074,473.98-456,288.36

Finding the Fourth Proportional to 778,751.52, 1,074,473.98 and 456,288.36

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Solution

The fourth proportional to 778,751.52, 1,074,473.98 and 456,288.36 is: 629,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,751.52 : 1,074,473.98 = 456,288.36 : x
  2. Step 2: Convert to fraction form
    778,751.52/1,074,473.98 = 456,288.36/x
  3. Step 3: Cross multiply
    778,751.52x = 1,074,473.98 × 456,288.36
  4. Step 4: Simplify right side
    778,751.52x = 490,269,970,196.87
  5. Step 5: Solve for x
    x = 490,269,970,196.87/778,751.52
  6. Step 6: Final answer
    x = 629,558.93

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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.