Home / 641,723.45-885,671.01-369,739.22

Finding the Fourth Proportional to 641,723.45, 885,671.01 and 369,739.22

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Solution

The fourth proportional to 641,723.45, 885,671.01 and 369,739.22 is: 510,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,723.45 : 885,671.01 = 369,739.22 : x
  2. Step 2: Convert to fraction form
    641,723.45/885,671.01 = 369,739.22/x
  3. Step 3: Cross multiply
    641,723.45x = 885,671.01 × 369,739.22
  4. Step 4: Simplify right side
    641,723.45x = 327,467,303,985.66
  5. Step 5: Solve for x
    x = 327,467,303,985.66/641,723.45
  6. Step 6: Final answer
    x = 510,293.50

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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.