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Finding the Fourth Proportional to 563,293.98, 777,376.80 and 321,654.18

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Solution

The fourth proportional to 563,293.98, 777,376.80 and 321,654.18 is: 443,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,293.98 : 777,376.80 = 321,654.18 : x
  2. Step 2: Convert to fraction form
    563,293.98/777,376.80 = 321,654.18/x
  3. Step 3: Cross multiply
    563,293.98x = 777,376.80 × 321,654.18
  4. Step 4: Simplify right side
    563,293.98x = 250,046,497,155.02
  5. Step 5: Solve for x
    x = 250,046,497,155.02/563,293.98
  6. Step 6: Final answer
    x = 443,900.53

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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.