Home / 766,147.02-1,056,776.66-479,168.88

Finding the Fourth Proportional to 766,147.02, 1,056,776.66 and 479,168.88

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Solution

The fourth proportional to 766,147.02, 1,056,776.66 and 479,168.88 is: 660,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,147.02 : 1,056,776.66 = 479,168.88 : x
  2. Step 2: Convert to fraction form
    766,147.02/1,056,776.66 = 479,168.88/x
  3. Step 3: Cross multiply
    766,147.02x = 1,056,776.66 × 479,168.88
  4. Step 4: Simplify right side
    766,147.02x = 506,374,484,020.47
  5. Step 5: Solve for x
    x = 506,374,484,020.47/766,147.02
  6. Step 6: Final answer
    x = 660,936.44

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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.