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Finding the Fourth Proportional to 499,803.63, 689,746.23 and 273,449.13

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Solution

The fourth proportional to 499,803.63, 689,746.23 and 273,449.13 is: 377,369.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,803.63 : 689,746.23 = 273,449.13 : x
  2. Step 2: Convert to fraction form
    499,803.63/689,746.23 = 273,449.13/x
  3. Step 3: Cross multiply
    499,803.63x = 689,746.23 × 273,449.13
  4. Step 4: Simplify right side
    499,803.63x = 188,610,506,514.28
  5. Step 5: Solve for x
    x = 188,610,506,514.28/499,803.63
  6. Step 6: Final answer
    x = 377,369.22

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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.