Home / 383,447.28-574,332.75-316,131.42

Finding the Fourth Proportional to 383,447.28, 574,332.75 and 316,131.42

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Solution

The fourth proportional to 383,447.28, 574,332.75 and 316,131.42 is: 473,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,447.28 : 574,332.75 = 316,131.42 : x
  2. Step 2: Convert to fraction form
    383,447.28/574,332.75 = 316,131.42/x
  3. Step 3: Cross multiply
    383,447.28x = 574,332.75 × 316,131.42
  4. Step 4: Simplify right side
    383,447.28x = 181,564,627,810.01
  5. Step 5: Solve for x
    x = 181,564,627,810.01/383,447.28
  6. Step 6: Final answer
    x = 473,506.10

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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.