Home / 766,071.06-1,056,043.87-490,388.33

Finding the Fourth Proportional to 766,071.06, 1,056,043.87 and 490,388.33

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Solution

The fourth proportional to 766,071.06, 1,056,043.87 and 490,388.33 is: 676,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,071.06 : 1,056,043.87 = 490,388.33 : x
  2. Step 2: Convert to fraction form
    766,071.06/1,056,043.87 = 490,388.33/x
  3. Step 3: Cross multiply
    766,071.06x = 1,056,043.87 × 490,388.33
  4. Step 4: Simplify right side
    766,071.06x = 517,871,589,816.04
  5. Step 5: Solve for x
    x = 517,871,589,816.04/766,071.06
  6. Step 6: Final answer
    x = 676,009.86

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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.