Home / 520,747.81-718,598.07-291,265.35

Finding the Fourth Proportional to 520,747.81, 718,598.07 and 291,265.35

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Solution

The fourth proportional to 520,747.81, 718,598.07 and 291,265.35 is: 401,927.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,747.81 : 718,598.07 = 291,265.35 : x
  2. Step 2: Convert to fraction form
    520,747.81/718,598.07 = 291,265.35/x
  3. Step 3: Cross multiply
    520,747.81x = 718,598.07 × 291,265.35
  4. Step 4: Simplify right side
    520,747.81x = 209,302,718,367.87
  5. Step 5: Solve for x
    x = 209,302,718,367.87/520,747.81
  6. Step 6: Final answer
    x = 401,927.22

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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.