Home / 1,076,005.20-1,484,342.37-668,348.40

Finding the Fourth Proportional to 1,076,005.20, 1,484,342.37 and 668,348.40

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Solution

The fourth proportional to 1,076,005.20, 1,484,342.37 and 668,348.40 is: 921,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,005.20 : 1,484,342.37 = 668,348.40 : x
  2. Step 2: Convert to fraction form
    1,076,005.20/1,484,342.37 = 668,348.40/x
  3. Step 3: Cross multiply
    1,076,005.20x = 1,484,342.37 × 668,348.40
  4. Step 4: Simplify right side
    1,076,005.20x = 992,057,848,041.71
  5. Step 5: Solve for x
    x = 992,057,848,041.71/1,076,005.20
  6. Step 6: Final answer
    x = 921,982.39

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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.