Home / 765,529.56-1,056,546.90-459,774.78

Finding the Fourth Proportional to 765,529.56, 1,056,546.90 and 459,774.78

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Solution

The fourth proportional to 765,529.56, 1,056,546.90 and 459,774.78 is: 634,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,529.56 : 1,056,546.90 = 459,774.78 : x
  2. Step 2: Convert to fraction form
    765,529.56/1,056,546.90 = 459,774.78/x
  3. Step 3: Cross multiply
    765,529.56x = 1,056,546.90 × 459,774.78
  4. Step 4: Simplify right side
    765,529.56x = 485,773,618,507.18
  5. Step 5: Solve for x
    x = 485,773,618,507.18/765,529.56
  6. Step 6: Final answer
    x = 634,558.93

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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.