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Finding the Fourth Proportional to 563,846.96, 778,119.48 and 309,182.96

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Solution

The fourth proportional to 563,846.96, 778,119.48 and 309,182.96 is: 426,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,846.96 : 778,119.48 = 309,182.96 : x
  2. Step 2: Convert to fraction form
    563,846.96/778,119.48 = 309,182.96/x
  3. Step 3: Cross multiply
    563,846.96x = 778,119.48 × 309,182.96
  4. Step 4: Simplify right side
    563,846.96x = 240,581,284,060.06
  5. Step 5: Solve for x
    x = 240,581,284,060.06/563,846.96
  6. Step 6: Final answer
    x = 426,678.34

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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.