Home / 563,844.96-778,116.72-309,180.96

Finding the Fourth Proportional to 563,844.96, 778,116.72 and 309,180.96

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Solution

The fourth proportional to 563,844.96, 778,116.72 and 309,180.96 is: 426,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,844.96 : 778,116.72 = 309,180.96 : x
  2. Step 2: Convert to fraction form
    563,844.96/778,116.72 = 309,180.96/x
  3. Step 3: Cross multiply
    563,844.96x = 778,116.72 × 309,180.96
  4. Step 4: Simplify right side
    563,844.96x = 240,578,874,481.65
  5. Step 5: Solve for x
    x = 240,578,874,481.65/563,844.96
  6. Step 6: Final answer
    x = 426,675.58

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1.5x scale

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.