Home / 786,840.82-1,178,268.15-487,905.28

Finding the Fourth Proportional to 786,840.82, 1,178,268.15 and 487,905.28

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Solution

The fourth proportional to 786,840.82, 1,178,268.15 and 487,905.28 is: 730,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,840.82 : 1,178,268.15 = 487,905.28 : x
  2. Step 2: Convert to fraction form
    786,840.82/1,178,268.15 = 487,905.28/x
  3. Step 3: Cross multiply
    786,840.82x = 1,178,268.15 × 487,905.28
  4. Step 4: Simplify right side
    786,840.82x = 574,883,251,640.83
  5. Step 5: Solve for x
    x = 574,883,251,640.83/786,840.82
  6. Step 6: Final answer
    x = 730,622.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.