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Finding the Fourth Proportional to 666,751.89, 1,000,431.45 and 282,606.02

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Solution

The fourth proportional to 666,751.89, 1,000,431.45 and 282,606.02 is: 424,037.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,751.89 : 1,000,431.45 = 282,606.02 : x
  2. Step 2: Convert to fraction form
    666,751.89/1,000,431.45 = 282,606.02/x
  3. Step 3: Cross multiply
    666,751.89x = 1,000,431.45 × 282,606.02
  4. Step 4: Simplify right side
    666,751.89x = 282,727,953,928.18
  5. Step 5: Solve for x
    x = 282,727,953,928.18/666,751.89
  6. Step 6: Final answer
    x = 424,037.72

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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.