Home / 913,792.07-1,369,668.59-381,136.07

Finding the Fourth Proportional to 913,792.07, 1,369,668.59 and 381,136.07

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Solution

The fourth proportional to 913,792.07, 1,369,668.59 and 381,136.07 is: 571,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,792.07 : 1,369,668.59 = 381,136.07 : x
  2. Step 2: Convert to fraction form
    913,792.07/1,369,668.59 = 381,136.07/x
  3. Step 3: Cross multiply
    913,792.07x = 1,369,668.59 × 381,136.07
  4. Step 4: Simplify right side
    913,792.07x = 522,030,106,542.79
  5. Step 5: Solve for x
    x = 522,030,106,542.79/913,792.07
  6. Step 6: Final answer
    x = 571,278.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.