Home / 803,147.28-1,108,343.64-445,451.28

Finding the Fourth Proportional to 803,147.28, 1,108,343.64 and 445,451.28

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Solution

The fourth proportional to 803,147.28, 1,108,343.64 and 445,451.28 is: 614,722.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,147.28 : 1,108,343.64 = 445,451.28 : x
  2. Step 2: Convert to fraction form
    803,147.28/1,108,343.64 = 445,451.28/x
  3. Step 3: Cross multiply
    803,147.28x = 1,108,343.64 × 445,451.28
  4. Step 4: Simplify right side
    803,147.28x = 493,713,093,117.86
  5. Step 5: Solve for x
    x = 493,713,093,117.86/803,147.28
  6. Step 6: Final answer
    x = 614,722.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.