Home / 666,942.12-1,000,572.35-217,663.83

Finding the Fourth Proportional to 666,942.12, 1,000,572.35 and 217,663.83

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Solution

The fourth proportional to 666,942.12, 1,000,572.35 and 217,663.83 is: 326,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,942.12 : 1,000,572.35 = 217,663.83 : x
  2. Step 2: Convert to fraction form
    666,942.12/1,000,572.35 = 217,663.83/x
  3. Step 3: Cross multiply
    666,942.12x = 1,000,572.35 × 217,663.83
  4. Step 4: Simplify right side
    666,942.12x = 217,788,409,893.10
  5. Step 5: Solve for x
    x = 217,788,409,893.10/666,942.12
  6. Step 6: Final answer
    x = 326,547.69

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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.