Home / 766,359.80-1,149,539.70-434,583.80

Finding the Fourth Proportional to 766,359.80, 1,149,539.70 and 434,583.80

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Solution

The fourth proportional to 766,359.80, 1,149,539.70 and 434,583.80 is: 651,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,359.80 : 1,149,539.70 = 434,583.80 : x
  2. Step 2: Convert to fraction form
    766,359.80/1,149,539.70 = 434,583.80/x
  3. Step 3: Cross multiply
    766,359.80x = 1,149,539.70 × 434,583.80
  4. Step 4: Simplify right side
    766,359.80x = 499,571,331,076.86
  5. Step 5: Solve for x
    x = 499,571,331,076.86/766,359.80
  6. Step 6: Final answer
    x = 651,875.70

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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.