Home / 765,936.64-1,056,304.44-479,482.80

Finding the Fourth Proportional to 765,936.64, 1,056,304.44 and 479,482.80

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Solution

The fourth proportional to 765,936.64, 1,056,304.44 and 479,482.80 is: 661,255.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,936.64 : 1,056,304.44 = 479,482.80 : x
  2. Step 2: Convert to fraction form
    765,936.64/1,056,304.44 = 479,482.80/x
  3. Step 3: Cross multiply
    765,936.64x = 1,056,304.44 × 479,482.80
  4. Step 4: Simplify right side
    765,936.64x = 506,479,810,543.63
  5. Step 5: Solve for x
    x = 506,479,810,543.63/765,936.64
  6. Step 6: Final answer
    x = 661,255.49

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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.