Home / 774,689.02-1,159,877.96-394,790.64

Finding the Fourth Proportional to 774,689.02, 1,159,877.96 and 394,790.64

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Solution

The fourth proportional to 774,689.02, 1,159,877.96 and 394,790.64 is: 591,087.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,689.02 : 1,159,877.96 = 394,790.64 : x
  2. Step 2: Convert to fraction form
    774,689.02/1,159,877.96 = 394,790.64/x
  3. Step 3: Cross multiply
    774,689.02x = 1,159,877.96 × 394,790.64
  4. Step 4: Simplify right side
    774,689.02x = 457,908,962,150.29
  5. Step 5: Solve for x
    x = 457,908,962,150.29/774,689.02
  6. Step 6: Final answer
    x = 591,087.46

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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.