Home / 402,495.04-554,857.88-281,260.06

Finding the Fourth Proportional to 402,495.04, 554,857.88 and 281,260.06

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Solution

The fourth proportional to 402,495.04, 554,857.88 and 281,260.06 is: 387,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,495.04 : 554,857.88 = 281,260.06 : x
  2. Step 2: Convert to fraction form
    402,495.04/554,857.88 = 281,260.06/x
  3. Step 3: Cross multiply
    402,495.04x = 554,857.88 × 281,260.06
  4. Step 4: Simplify right side
    402,495.04x = 156,059,357,826.83
  5. Step 5: Solve for x
    x = 156,059,357,826.83/402,495.04
  6. Step 6: Final answer
    x = 387,729.89

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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.