Home / 678,807.60-1,017,952.20-205,335.60

Finding the Fourth Proportional to 678,807.60, 1,017,952.20 and 205,335.60

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Solution

The fourth proportional to 678,807.60, 1,017,952.20 and 205,335.60 is: 307,924.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,807.60 : 1,017,952.20 = 205,335.60 : x
  2. Step 2: Convert to fraction form
    678,807.60/1,017,952.20 = 205,335.60/x
  3. Step 3: Cross multiply
    678,807.60x = 1,017,952.20 × 205,335.60
  4. Step 4: Simplify right side
    678,807.60x = 209,021,825,758.32
  5. Step 5: Solve for x
    x = 209,021,825,758.32/678,807.60
  6. Step 6: Final answer
    x = 307,924.99

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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.