Home / 947,090.88-1,306,969.02-517,359.96

Finding the Fourth Proportional to 947,090.88, 1,306,969.02 and 517,359.96

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Solution

The fourth proportional to 947,090.88, 1,306,969.02 and 517,359.96 is: 713,947.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,090.88 : 1,306,969.02 = 517,359.96 : x
  2. Step 2: Convert to fraction form
    947,090.88/1,306,969.02 = 517,359.96/x
  3. Step 3: Cross multiply
    947,090.88x = 1,306,969.02 × 517,359.96
  4. Step 4: Simplify right side
    947,090.88x = 676,173,439,908.44
  5. Step 5: Solve for x
    x = 676,173,439,908.44/947,090.88
  6. Step 6: Final answer
    x = 713,947.79

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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.