Home / 857,374.02-1,286,047.65-208,957.62

Finding the Fourth Proportional to 857,374.02, 1,286,047.65 and 208,957.62

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Solution

The fourth proportional to 857,374.02, 1,286,047.65 and 208,957.62 is: 313,433.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,374.02 : 1,286,047.65 = 208,957.62 : x
  2. Step 2: Convert to fraction form
    857,374.02/1,286,047.65 = 208,957.62/x
  3. Step 3: Cross multiply
    857,374.02x = 1,286,047.65 × 208,957.62
  4. Step 4: Simplify right side
    857,374.02x = 268,729,456,150.59
  5. Step 5: Solve for x
    x = 268,729,456,150.59/857,374.02
  6. Step 6: Final answer
    x = 313,433.17

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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.