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Finding the Fourth Proportional to 612,368.98, 845,098.02 and 340,441.45

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Solution

The fourth proportional to 612,368.98, 845,098.02 and 340,441.45 is: 469,825.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,368.98 : 845,098.02 = 340,441.45 : x
  2. Step 2: Convert to fraction form
    612,368.98/845,098.02 = 340,441.45/x
  3. Step 3: Cross multiply
    612,368.98x = 845,098.02 × 340,441.45
  4. Step 4: Simplify right side
    612,368.98x = 287,706,393,208.18
  5. Step 5: Solve for x
    x = 287,706,393,208.18/612,368.98
  6. Step 6: Final answer
    x = 469,825.23

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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.