Home / 499,037.40-748,334.66-309,490.10

Finding the Fourth Proportional to 499,037.40, 748,334.66 and 309,490.10

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Solution

The fourth proportional to 499,037.40, 748,334.66 and 309,490.10 is: 464,097.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,037.40 : 748,334.66 = 309,490.10 : x
  2. Step 2: Convert to fraction form
    499,037.40/748,334.66 = 309,490.10/x
  3. Step 3: Cross multiply
    499,037.40x = 748,334.66 × 309,490.10
  4. Step 4: Simplify right side
    499,037.40x = 231,602,168,756.87
  5. Step 5: Solve for x
    x = 231,602,168,756.87/499,037.40
  6. Step 6: Final answer
    x = 464,097.82

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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.