Home / 663,737.04-916,046.40-422,043.60

Finding the Fourth Proportional to 663,737.04, 916,046.40 and 422,043.60

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Solution

The fourth proportional to 663,737.04, 916,046.40 and 422,043.60 is: 582,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,737.04 : 916,046.40 = 422,043.60 : x
  2. Step 2: Convert to fraction form
    663,737.04/916,046.40 = 422,043.60/x
  3. Step 3: Cross multiply
    663,737.04x = 916,046.40 × 422,043.60
  4. Step 4: Simplify right side
    663,737.04x = 386,611,520,423.04
  5. Step 5: Solve for x
    x = 386,611,520,423.04/663,737.04
  6. Step 6: Final answer
    x = 582,476.94

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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.