Home / 563,118.16-777,103.02-308,469.28

Finding the Fourth Proportional to 563,118.16, 777,103.02 and 308,469.28

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Solution

The fourth proportional to 563,118.16, 777,103.02 and 308,469.28 is: 425,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,118.16 : 777,103.02 = 308,469.28 : x
  2. Step 2: Convert to fraction form
    563,118.16/777,103.02 = 308,469.28/x
  3. Step 3: Cross multiply
    563,118.16x = 777,103.02 × 308,469.28
  4. Step 4: Simplify right side
    563,118.16x = 239,712,409,065.23
  5. Step 5: Solve for x
    x = 239,712,409,065.23/563,118.16
  6. Step 6: Final answer
    x = 425,687.58

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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.