Home / 839,810.31-1,259,932.64-240,815.31

Finding the Fourth Proportional to 839,810.31, 1,259,932.64 and 240,815.31

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Solution

The fourth proportional to 839,810.31, 1,259,932.64 and 240,815.31 is: 361,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810.31 : 1,259,932.64 = 240,815.31 : x
  2. Step 2: Convert to fraction form
    839,810.31/1,259,932.64 = 240,815.31/x
  3. Step 3: Cross multiply
    839,810.31x = 1,259,932.64 × 240,815.31
  4. Step 4: Simplify right side
    839,810.31x = 303,411,069,280.72
  5. Step 5: Solve for x
    x = 303,411,069,280.72/839,810.31
  6. Step 6: Final answer
    x = 361,285.24

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1.5x scale

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.