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Finding the Fourth Proportional to 712,762.05, 983,611.53 and 426,282.15

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Solution

The fourth proportional to 712,762.05, 983,611.53 and 426,282.15 is: 588,269.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,762.05 : 983,611.53 = 426,282.15 : x
  2. Step 2: Convert to fraction form
    712,762.05/983,611.53 = 426,282.15/x
  3. Step 3: Cross multiply
    712,762.05x = 983,611.53 × 426,282.15
  4. Step 4: Simplify right side
    712,762.05x = 419,296,037,773.19
  5. Step 5: Solve for x
    x = 419,296,037,773.19/712,762.05
  6. Step 6: Final answer
    x = 588,269.31

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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.