Home / 1,076,981.60-1,615,472.40-328,930.40

Finding the Fourth Proportional to 1,076,981.60, 1,615,472.40 and 328,930.40

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Solution

The fourth proportional to 1,076,981.60, 1,615,472.40 and 328,930.40 is: 493,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,981.60 : 1,615,472.40 = 328,930.40 : x
  2. Step 2: Convert to fraction form
    1,076,981.60/1,615,472.40 = 328,930.40/x
  3. Step 3: Cross multiply
    1,076,981.60x = 1,615,472.40 × 328,930.40
  4. Step 4: Simplify right side
    1,076,981.60x = 531,377,982,720.96
  5. Step 5: Solve for x
    x = 531,377,982,720.96/1,076,981.60
  6. Step 6: Final answer
    x = 493,395.60

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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.