Home / 499,539.19-689,445.66-371,329.15

Finding the Fourth Proportional to 499,539.19, 689,445.66 and 371,329.15

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Solution

The fourth proportional to 499,539.19, 689,445.66 and 371,329.15 is: 512,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,539.19 : 689,445.66 = 371,329.15 : x
  2. Step 2: Convert to fraction form
    499,539.19/689,445.66 = 371,329.15/x
  3. Step 3: Cross multiply
    499,539.19x = 689,445.66 × 371,329.15
  4. Step 4: Simplify right side
    499,539.19x = 256,011,270,898.99
  5. Step 5: Solve for x
    x = 256,011,270,898.99/499,539.19
  6. Step 6: Final answer
    x = 512,494.87

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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.