Home / 842,430.40-1,162,392.68-479,846.32

Finding the Fourth Proportional to 842,430.40, 1,162,392.68 and 479,846.32

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Solution

The fourth proportional to 842,430.40, 1,162,392.68 and 479,846.32 is: 662,096.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,430.40 : 1,162,392.68 = 479,846.32 : x
  2. Step 2: Convert to fraction form
    842,430.40/1,162,392.68 = 479,846.32/x
  3. Step 3: Cross multiply
    842,430.40x = 1,162,392.68 × 479,846.32
  4. Step 4: Simplify right side
    842,430.40x = 557,769,848,186.57
  5. Step 5: Solve for x
    x = 557,769,848,186.57/842,430.40
  6. Step 6: Final answer
    x = 662,096.06

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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.