Home / 778,133.13-1,073,906.28-456,113.79

Finding the Fourth Proportional to 778,133.13, 1,073,906.28 and 456,113.79

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Solution

The fourth proportional to 778,133.13, 1,073,906.28 and 456,113.79 is: 629,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,133.13 : 1,073,906.28 = 456,113.79 : x
  2. Step 2: Convert to fraction form
    778,133.13/1,073,906.28 = 456,113.79/x
  3. Step 3: Cross multiply
    778,133.13x = 1,073,906.28 × 456,113.79
  4. Step 4: Simplify right side
    778,133.13x = 489,823,463,475.60
  5. Step 5: Solve for x
    x = 489,823,463,475.60/778,133.13
  6. Step 6: Final answer
    x = 629,485.42

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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.