Home / 691,668.55-954,575.99-405,429.13

Finding the Fourth Proportional to 691,668.55, 954,575.99 and 405,429.13

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Solution

The fourth proportional to 691,668.55, 954,575.99 and 405,429.13 is: 559,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,668.55 : 954,575.99 = 405,429.13 : x
  2. Step 2: Convert to fraction form
    691,668.55/954,575.99 = 405,429.13/x
  3. Step 3: Cross multiply
    691,668.55x = 954,575.99 × 405,429.13
  4. Step 4: Simplify right side
    691,668.55x = 387,012,913,144.59
  5. Step 5: Solve for x
    x = 387,012,913,144.59/691,668.55
  6. Step 6: Final answer
    x = 559,535.22

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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.