Home / 402,427.12-603,698.64-121,966.24

Finding the Fourth Proportional to 402,427.12, 603,698.64 and 121,966.24

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Solution

The fourth proportional to 402,427.12, 603,698.64 and 121,966.24 is: 182,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,427.12 : 603,698.64 = 121,966.24 : x
  2. Step 2: Convert to fraction form
    402,427.12/603,698.64 = 121,966.24/x
  3. Step 3: Cross multiply
    402,427.12x = 603,698.64 × 121,966.24
  4. Step 4: Simplify right side
    402,427.12x = 73,630,853,213.91
  5. Step 5: Solve for x
    x = 73,630,853,213.91/402,427.12
  6. Step 6: Final answer
    x = 182,966.93

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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.