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Finding the Fourth Proportional to 839,930.40, 1,159,098.12 and 477,325.80

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Solution

The fourth proportional to 839,930.40, 1,159,098.12 and 477,325.80 is: 658,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,930.40 : 1,159,098.12 = 477,325.80 : x
  2. Step 2: Convert to fraction form
    839,930.40/1,159,098.12 = 477,325.80/x
  3. Step 3: Cross multiply
    839,930.40x = 1,159,098.12 × 477,325.80
  4. Step 4: Simplify right side
    839,930.40x = 553,267,437,407.50
  5. Step 5: Solve for x
    x = 553,267,437,407.50/839,930.40
  6. Step 6: Final answer
    x = 658,706.29

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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.