Home / 817,003.32-1,127,004.48-490,231.80

Finding the Fourth Proportional to 817,003.32, 1,127,004.48 and 490,231.80

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Solution

The fourth proportional to 817,003.32, 1,127,004.48 and 490,231.80 is: 676,243.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,003.32 : 1,127,004.48 = 490,231.80 : x
  2. Step 2: Convert to fraction form
    817,003.32/1,127,004.48 = 490,231.80/x
  3. Step 3: Cross multiply
    817,003.32x = 1,127,004.48 × 490,231.80
  4. Step 4: Simplify right side
    817,003.32x = 552,493,434,838.46
  5. Step 5: Solve for x
    x = 552,493,434,838.46/817,003.32
  6. Step 6: Final answer
    x = 676,243.81

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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.