Home / 666,989.03-1,000,484.91-312,252.17

Finding the Fourth Proportional to 666,989.03, 1,000,484.91 and 312,252.17

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Solution

The fourth proportional to 666,989.03, 1,000,484.91 and 312,252.17 is: 468,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,989.03 : 1,000,484.91 = 312,252.17 : x
  2. Step 2: Convert to fraction form
    666,989.03/1,000,484.91 = 312,252.17/x
  3. Step 3: Cross multiply
    666,989.03x = 1,000,484.91 × 312,252.17
  4. Step 4: Simplify right side
    666,989.03x = 312,403,579,197.33
  5. Step 5: Solve for x
    x = 312,403,579,197.33/666,989.03
  6. Step 6: Final answer
    x = 468,378.88

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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.