Home / 666,944.28-999,699.57-288,044.10

Finding the Fourth Proportional to 666,944.28, 999,699.57 and 288,044.10

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Solution

The fourth proportional to 666,944.28, 999,699.57 and 288,044.10 is: 431,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,944.28 : 999,699.57 = 288,044.10 : x
  2. Step 2: Convert to fraction form
    666,944.28/999,699.57 = 288,044.10/x
  3. Step 3: Cross multiply
    666,944.28x = 999,699.57 × 288,044.10
  4. Step 4: Simplify right side
    666,944.28x = 287,957,562,911.04
  5. Step 5: Solve for x
    x = 287,957,562,911.04/666,944.28
  6. Step 6: Final answer
    x = 431,756.55

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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.