Home / 483,913.86-723,748.56-430,979.28

Finding the Fourth Proportional to 483,913.86, 723,748.56 and 430,979.28

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Solution

The fourth proportional to 483,913.86, 723,748.56 and 430,979.28 is: 644,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,913.86 : 723,748.56 = 430,979.28 : x
  2. Step 2: Convert to fraction form
    483,913.86/723,748.56 = 430,979.28/x
  3. Step 3: Cross multiply
    483,913.86x = 723,748.56 × 430,979.28
  4. Step 4: Simplify right side
    483,913.86x = 311,920,633,289.84
  5. Step 5: Solve for x
    x = 311,920,633,289.84/483,913.86
  6. Step 6: Final answer
    x = 644,578.84

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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.