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Finding the Fourth Proportional to 578,560.07, 864,321.60 and 374,493.68

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Solution

The fourth proportional to 578,560.07, 864,321.60 and 374,493.68 is: 559,463.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,560.07 : 864,321.60 = 374,493.68 : x
  2. Step 2: Convert to fraction form
    578,560.07/864,321.60 = 374,493.68/x
  3. Step 3: Cross multiply
    578,560.07x = 864,321.60 × 374,493.68
  4. Step 4: Simplify right side
    578,560.07x = 323,682,976,687.49
  5. Step 5: Solve for x
    x = 323,682,976,687.49/578,560.07
  6. Step 6: Final answer
    x = 559,463.04

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.