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Finding the Fourth Proportional to 563,506.32, 777,634.08 and 308,856.90

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Solution

The fourth proportional to 563,506.32, 777,634.08 and 308,856.90 is: 426,219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,506.32 : 777,634.08 = 308,856.90 : x
  2. Step 2: Convert to fraction form
    563,506.32/777,634.08 = 308,856.90/x
  3. Step 3: Cross multiply
    563,506.32x = 777,634.08 × 308,856.90
  4. Step 4: Simplify right side
    563,506.32x = 240,177,651,283.15
  5. Step 5: Solve for x
    x = 240,177,651,283.15/563,506.32
  6. Step 6: Final answer
    x = 426,219.98

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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.