Home / 557,118.08-768,811.02-302,469.26

Finding the Fourth Proportional to 557,118.08, 768,811.02 and 302,469.26

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Solution

The fourth proportional to 557,118.08, 768,811.02 and 302,469.26 is: 417,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,118.08 : 768,811.02 = 302,469.26 : x
  2. Step 2: Convert to fraction form
    557,118.08/768,811.02 = 302,469.26/x
  3. Step 3: Cross multiply
    557,118.08x = 768,811.02 × 302,469.26
  4. Step 4: Simplify right side
    557,118.08x = 232,541,700,299.25
  5. Step 5: Solve for x
    x = 232,541,700,299.25/557,118.08
  6. Step 6: Final answer
    x = 417,401.10

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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.