Home / 499,821.27-689,035.93-356,332.20

Finding the Fourth Proportional to 499,821.27, 689,035.93 and 356,332.20

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Solution

The fourth proportional to 499,821.27, 689,035.93 and 356,332.20 is: 491,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,821.27 : 689,035.93 = 356,332.20 : x
  2. Step 2: Convert to fraction form
    499,821.27/689,035.93 = 356,332.20/x
  3. Step 3: Cross multiply
    499,821.27x = 689,035.93 × 356,332.20
  4. Step 4: Simplify right side
    499,821.27x = 245,525,685,341.23
  5. Step 5: Solve for x
    x = 245,525,685,341.23/499,821.27
  6. Step 6: Final answer
    x = 491,226.97

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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.