Home / 457,410.32-686,063.55-120,477.34

Finding the Fourth Proportional to 457,410.32, 686,063.55 and 120,477.34

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Solution

The fourth proportional to 457,410.32, 686,063.55 and 120,477.34 is: 180,702.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,410.32 : 686,063.55 = 120,477.34 : x
  2. Step 2: Convert to fraction form
    457,410.32/686,063.55 = 120,477.34/x
  3. Step 3: Cross multiply
    457,410.32x = 686,063.55 × 120,477.34
  4. Step 4: Simplify right side
    457,410.32x = 82,655,112,884.33
  5. Step 5: Solve for x
    x = 82,655,112,884.33/457,410.32
  6. Step 6: Final answer
    x = 180,702.34

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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.