Home / 520,747.19-718,597.21-291,264.72

Finding the Fourth Proportional to 520,747.19, 718,597.21 and 291,264.72

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Solution

The fourth proportional to 520,747.19, 718,597.21 and 291,264.72 is: 401,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,747.19 : 718,597.21 = 291,264.72 : x
  2. Step 2: Convert to fraction form
    520,747.19/718,597.21 = 291,264.72/x
  3. Step 3: Cross multiply
    520,747.19x = 718,597.21 × 291,264.72
  4. Step 4: Simplify right side
    520,747.19x = 209,302,015,163.43
  5. Step 5: Solve for x
    x = 209,302,015,163.43/520,747.19
  6. Step 6: Final answer
    x = 401,926.35

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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.