Home / 621,550.46-857,733.39-345,903.69

Finding the Fourth Proportional to 621,550.46, 857,733.39 and 345,903.69

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Solution

The fourth proportional to 621,550.46, 857,733.39 and 345,903.69 is: 477,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,550.46 : 857,733.39 = 345,903.69 : x
  2. Step 2: Convert to fraction form
    621,550.46/857,733.39 = 345,903.69/x
  3. Step 3: Cross multiply
    621,550.46x = 857,733.39 × 345,903.69
  4. Step 4: Simplify right side
    621,550.46x = 296,693,144,637.21
  5. Step 5: Solve for x
    x = 296,693,144,637.21/621,550.46
  6. Step 6: Final answer
    x = 477,343.62

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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.