Home / 666,911.61-1,000,526.55-217,633.31

Finding the Fourth Proportional to 666,911.61, 1,000,526.55 and 217,633.31

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Solution

The fourth proportional to 666,911.61, 1,000,526.55 and 217,633.31 is: 326,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,911.61 : 1,000,526.55 = 217,633.31 : x
  2. Step 2: Convert to fraction form
    666,911.61/1,000,526.55 = 217,633.31/x
  3. Step 3: Cross multiply
    666,911.61x = 1,000,526.55 × 217,633.31
  4. Step 4: Simplify right side
    666,911.61x = 217,747,905,995.87
  5. Step 5: Solve for x
    x = 217,747,905,995.87/666,911.61
  6. Step 6: Final answer
    x = 326,501.90

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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.