Home / 520,440.15-718,405.60-339,196.17

Finding the Fourth Proportional to 520,440.15, 718,405.60 and 339,196.17

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Solution

The fourth proportional to 520,440.15, 718,405.60 and 339,196.17 is: 468,219.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,440.15 : 718,405.60 = 339,196.17 : x
  2. Step 2: Convert to fraction form
    520,440.15/718,405.60 = 339,196.17/x
  3. Step 3: Cross multiply
    520,440.15x = 718,405.60 × 339,196.17
  4. Step 4: Simplify right side
    520,440.15x = 243,680,428,026.55
  5. Step 5: Solve for x
    x = 243,680,428,026.55/520,440.15
  6. Step 6: Final answer
    x = 468,219.89

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1.5x scale

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.