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Finding the Fourth Proportional to 568,144.40, 785,078.63 and 540,467.91

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Solution

The fourth proportional to 568,144.40, 785,078.63 and 540,467.91 is: 746,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,144.40 : 785,078.63 = 540,467.91 : x
  2. Step 2: Convert to fraction form
    568,144.40/785,078.63 = 540,467.91/x
  3. Step 3: Cross multiply
    568,144.40x = 785,078.63 × 540,467.91
  4. Step 4: Simplify right side
    568,144.40x = 424,309,805,666.18
  5. Step 5: Solve for x
    x = 424,309,805,666.18/568,144.40
  6. Step 6: Final answer
    x = 746,834.45

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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.