Home / 520,968.38-718,966.50-291,523.66

Finding the Fourth Proportional to 520,968.38, 718,966.50 and 291,523.66

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Solution

The fourth proportional to 520,968.38, 718,966.50 and 291,523.66 is: 402,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,968.38 : 718,966.50 = 291,523.66 : x
  2. Step 2: Convert to fraction form
    520,968.38/718,966.50 = 291,523.66/x
  3. Step 3: Cross multiply
    520,968.38x = 718,966.50 × 291,523.66
  4. Step 4: Simplify right side
    520,968.38x = 209,595,745,497.39
  5. Step 5: Solve for x
    x = 209,595,745,497.39/520,968.38
  6. Step 6: Final answer
    x = 402,319.51

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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.