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Finding the Fourth Proportional to 660,037.00, 990,472.00 and 280,957.16

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Solution

The fourth proportional to 660,037.00, 990,472.00 and 280,957.16 is: 421,613.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,037.00 : 990,472.00 = 280,957.16 : x
  2. Step 2: Convert to fraction form
    660,037.00/990,472.00 = 280,957.16/x
  3. Step 3: Cross multiply
    660,037.00x = 990,472.00 × 280,957.16
  4. Step 4: Simplify right side
    660,037.00x = 278,280,194,524.77
  5. Step 5: Solve for x
    x = 278,280,194,524.77/660,037.00
  6. Step 6: Final answer
    x = 421,613.02

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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.