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Finding the Fourth Proportional to 284,559.30, 426,860.55 and 84,864.10

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Solution

The fourth proportional to 284,559.30, 426,860.55 and 84,864.10 is: 127,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,559.30 : 426,860.55 = 84,864.10 : x
  2. Step 2: Convert to fraction form
    284,559.30/426,860.55 = 84,864.10/x
  3. Step 3: Cross multiply
    284,559.30x = 426,860.55 × 84,864.10
  4. Step 4: Simplify right side
    284,559.30x = 36,225,136,401.26
  5. Step 5: Solve for x
    x = 36,225,136,401.26/284,559.30
  6. Step 6: Final answer
    x = 127,302.59

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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.