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Finding the Fourth Proportional to 520,160.90, 780,241.35 and 333,536.90

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Solution

The fourth proportional to 520,160.90, 780,241.35 and 333,536.90 is: 500,305.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,160.90 : 780,241.35 = 333,536.90 : x
  2. Step 2: Convert to fraction form
    520,160.90/780,241.35 = 333,536.90/x
  3. Step 3: Cross multiply
    520,160.90x = 780,241.35 × 333,536.90
  4. Step 4: Simplify right side
    520,160.90x = 260,239,281,130.82
  5. Step 5: Solve for x
    x = 260,239,281,130.82/520,160.90
  6. Step 6: Final answer
    x = 500,305.35

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Similar ratio
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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.