Home / 563,285.12-777,328.38-305,156.14

Finding the Fourth Proportional to 563,285.12, 777,328.38 and 305,156.14

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Solution

The fourth proportional to 563,285.12, 777,328.38 and 305,156.14 is: 421,112.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,285.12 : 777,328.38 = 305,156.14 : x
  2. Step 2: Convert to fraction form
    563,285.12/777,328.38 = 305,156.14/x
  3. Step 3: Cross multiply
    563,285.12x = 777,328.38 × 305,156.14
  4. Step 4: Simplify right side
    563,285.12x = 237,206,527,953.25
  5. Step 5: Solve for x
    x = 237,206,527,953.25/563,285.12
  6. Step 6: Final answer
    x = 421,112.72

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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.