Home / 520,175.04-780,289.50-165,216.84

Finding the Fourth Proportional to 520,175.04, 780,289.50 and 165,216.84

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Solution

The fourth proportional to 520,175.04, 780,289.50 and 165,216.84 is: 247,833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,175.04 : 780,289.50 = 165,216.84 : x
  2. Step 2: Convert to fraction form
    520,175.04/780,289.50 = 165,216.84/x
  3. Step 3: Cross multiply
    520,175.04x = 780,289.50 × 165,216.84
  4. Step 4: Simplify right side
    520,175.04x = 128,916,965,475.18
  5. Step 5: Solve for x
    x = 128,916,965,475.18/520,175.04
  6. Step 6: Final answer
    x = 247,833.82

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1.5x scale

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.