Home / 666,788.04-1,000,004.40-186,989.40

Finding the Fourth Proportional to 666,788.04, 1,000,004.40 and 186,989.40

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Solution

The fourth proportional to 666,788.04, 1,000,004.40 and 186,989.40 is: 280,434.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,788.04 : 1,000,004.40 = 186,989.40 : x
  2. Step 2: Convert to fraction form
    666,788.04/1,000,004.40 = 186,989.40/x
  3. Step 3: Cross multiply
    666,788.04x = 1,000,004.40 × 186,989.40
  4. Step 4: Simplify right side
    666,788.04x = 186,990,222,753.36
  5. Step 5: Solve for x
    x = 186,990,222,753.36/666,788.04
  6. Step 6: Final answer
    x = 280,434.28

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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.