Home / 774,780.96-1,159,671.60-400,288.80

Finding the Fourth Proportional to 774,780.96, 1,159,671.60 and 400,288.80

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Solution

The fourth proportional to 774,780.96, 1,159,671.60 and 400,288.80 is: 599,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,780.96 : 1,159,671.60 = 400,288.80 : x
  2. Step 2: Convert to fraction form
    774,780.96/1,159,671.60 = 400,288.80/x
  3. Step 3: Cross multiply
    774,780.96x = 1,159,671.60 × 400,288.80
  4. Step 4: Simplify right side
    774,780.96x = 464,203,553,158.08
  5. Step 5: Solve for x
    x = 464,203,553,158.08/774,780.96
  6. Step 6: Final answer
    x = 599,141.66

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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.