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Finding the Fourth Proportional to 563,518.16, 777,653.44 and 308,868.56

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Solution

The fourth proportional to 563,518.16, 777,653.44 and 308,868.56 is: 426,237.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,518.16 : 777,653.44 = 308,868.56 : x
  2. Step 2: Convert to fraction form
    563,518.16/777,653.44 = 308,868.56/x
  3. Step 3: Cross multiply
    563,518.16x = 777,653.44 × 308,868.56
  4. Step 4: Simplify right side
    563,518.16x = 240,192,698,191.85
  5. Step 5: Solve for x
    x = 240,192,698,191.85/563,518.16
  6. Step 6: Final answer
    x = 426,237.72

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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.