Home / 499,130.37-688,802.67-281,342.43

Finding the Fourth Proportional to 499,130.37, 688,802.67 and 281,342.43

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Solution

The fourth proportional to 499,130.37, 688,802.67 and 281,342.43 is: 388,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,130.37 : 688,802.67 = 281,342.43 : x
  2. Step 2: Convert to fraction form
    499,130.37/688,802.67 = 281,342.43/x
  3. Step 3: Cross multiply
    499,130.37x = 688,802.67 × 281,342.43
  4. Step 4: Simplify right side
    499,130.37x = 193,789,416,968.29
  5. Step 5: Solve for x
    x = 193,789,416,968.29/499,130.37
  6. Step 6: Final answer
    x = 388,254.11

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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.