Home / 1,038,963.60-1,558,121.40-408,070.80

Finding the Fourth Proportional to 1,038,963.60, 1,558,121.40 and 408,070.80

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Solution

The fourth proportional to 1,038,963.60, 1,558,121.40 and 408,070.80 is: 611,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,963.60 : 1,558,121.40 = 408,070.80 : x
  2. Step 2: Convert to fraction form
    1,038,963.60/1,558,121.40 = 408,070.80/x
  3. Step 3: Cross multiply
    1,038,963.60x = 1,558,121.40 × 408,070.80
  4. Step 4: Simplify right side
    1,038,963.60x = 635,823,846,195.12
  5. Step 5: Solve for x
    x = 635,823,846,195.12/1,038,963.60
  6. Step 6: Final answer
    x = 611,978.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.