Home / 1,384,220.80-2,076,331.20-437,881.60

Finding the Fourth Proportional to 1,384,220.80, 2,076,331.20 and 437,881.60

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Solution

The fourth proportional to 1,384,220.80, 2,076,331.20 and 437,881.60 is: 656,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,220.80 : 2,076,331.20 = 437,881.60 : x
  2. Step 2: Convert to fraction form
    1,384,220.80/2,076,331.20 = 437,881.60/x
  3. Step 3: Cross multiply
    1,384,220.80x = 2,076,331.20 × 437,881.60
  4. Step 4: Simplify right side
    1,384,220.80x = 909,187,227,985.92
  5. Step 5: Solve for x
    x = 909,187,227,985.92/1,384,220.80
  6. Step 6: Final answer
    x = 656,822.40

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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.