Home / 759,338.04-1,047,908.34-419,828.12

Finding the Fourth Proportional to 759,338.04, 1,047,908.34 and 419,828.12

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Solution

The fourth proportional to 759,338.04, 1,047,908.34 and 419,828.12 is: 579,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,338.04 : 1,047,908.34 = 419,828.12 : x
  2. Step 2: Convert to fraction form
    759,338.04/1,047,908.34 = 419,828.12/x
  3. Step 3: Cross multiply
    759,338.04x = 1,047,908.34 × 419,828.12
  4. Step 4: Simplify right side
    759,338.04x = 439,941,388,314.52
  5. Step 5: Solve for x
    x = 439,941,388,314.52/759,338.04
  6. Step 6: Final answer
    x = 579,374.88

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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.