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Finding the Fourth Proportional to 622,065.76, 858,478.04 and 350,151.20

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Solution

The fourth proportional to 622,065.76, 858,478.04 and 350,151.20 is: 483,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,065.76 : 858,478.04 = 350,151.20 : x
  2. Step 2: Convert to fraction form
    622,065.76/858,478.04 = 350,151.20/x
  3. Step 3: Cross multiply
    622,065.76x = 858,478.04 × 350,151.20
  4. Step 4: Simplify right side
    622,065.76x = 300,597,115,879.65
  5. Step 5: Solve for x
    x = 300,597,115,879.65/622,065.76
  6. Step 6: Final answer
    x = 483,224.02

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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.