Home / 858,755.20-1,185,027.28-476,781.84

Finding the Fourth Proportional to 858,755.20, 1,185,027.28 and 476,781.84

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Solution

The fourth proportional to 858,755.20, 1,185,027.28 and 476,781.84 is: 657,928.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,755.20 : 1,185,027.28 = 476,781.84 : x
  2. Step 2: Convert to fraction form
    858,755.20/1,185,027.28 = 476,781.84/x
  3. Step 3: Cross multiply
    858,755.20x = 1,185,027.28 × 476,781.84
  4. Step 4: Simplify right side
    858,755.20x = 564,999,487,008.60
  5. Step 5: Solve for x
    x = 564,999,487,008.60/858,755.20
  6. Step 6: Final answer
    x = 657,928.46

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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.