Home / 428,981.22-592,022.16-247,700.79

Finding the Fourth Proportional to 428,981.22, 592,022.16 and 247,700.79

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Solution

The fourth proportional to 428,981.22, 592,022.16 and 247,700.79 is: 341,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,981.22 : 592,022.16 = 247,700.79 : x
  2. Step 2: Convert to fraction form
    428,981.22/592,022.16 = 247,700.79/x
  3. Step 3: Cross multiply
    428,981.22x = 592,022.16 × 247,700.79
  4. Step 4: Simplify right side
    428,981.22x = 146,644,356,729.51
  5. Step 5: Solve for x
    x = 146,644,356,729.51/428,981.22
  6. Step 6: Final answer
    x = 341,843.30

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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.