Home / 641,723.04-885,604.32-355,237.92

Finding the Fourth Proportional to 641,723.04, 885,604.32 and 355,237.92

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Solution

The fourth proportional to 641,723.04, 885,604.32 and 355,237.92 is: 490,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,723.04 : 885,604.32 = 355,237.92 : x
  2. Step 2: Convert to fraction form
    641,723.04/885,604.32 = 355,237.92/x
  3. Step 3: Cross multiply
    641,723.04x = 885,604.32 × 355,237.92
  4. Step 4: Simplify right side
    641,723.04x = 314,600,236,579.81
  5. Step 5: Solve for x
    x = 314,600,236,579.81/641,723.04
  6. Step 6: Final answer
    x = 490,243.01

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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.